Products

External Canister Filter for Aquarium – Ultra-Quiet Multi-Layer Filtration with UV Option

The SOBO External Canister Filter is a powerful and energy-efficient canister filter designed for 60–120cm aquariums. This professional-grade aquarium filter features an ultra-quiet built-in pump (≤30dB), multi-layer filtration system, and optional UV sterilizer to effectively remove debris, stabilize water quality, and control algae and bacteria. With adjustable flow rates, leak-proof construction, and easy maintenance design, it delivers crystal-clear water while reducing noise, energy consumption, and frequent cleaning—making it ideal for both beginners and experienced aquarists.

Key Features

• Ultra-Quiet Operation (≤30dB)
  Built-in submersible pump and sealed design ensure near-silent performance, perfect for bedrooms and offices.
• Multi-Layer Filtration System
  Supports mechanical and biological filtration with customizable media layers to maintain stable, clear water.
• Optional UV Sterilizer
  Effectively reduces algae, bacteria, and parasites to prevent green water and improve fish health.
• Adjustable Flow Rate
  Easily control water output for different setups, from strong circulation to gentle flow for delicate fish.
• Energy Efficient & Leak-Proof Design
  Low power consumption combined with secure sealing structure ensures safe, long-term operation.

I. Pseudogastromyzon fangi (Species Overview)

← Back to Loach (genus overview)

Chinese Name: 方氏拟腹吸鳅
Scientific Name: Pseudogastromyzon fangi
Family / Genus: Balitoridae · Pseudogastromyzon
Native Range:
Zhejiang Province (Oujiang & Feiyun River systems), Pearl River basin, upper Xiang River of the Yangtze drainage, China

Maximum Length: 7–9 cm (one of the larger species within the genus)
Lifespan: 4–5 years under proper captive care
Conservation Status:
Chinese endemic species, protected under general provisions of China’s Fisheries Law

Endemism:
Restricted to the above river systems; no confirmed records outside China

📌 Note: Due to its relatively large body size among hillstream loaches, sufficient rock surface area is more important than total water volume.

II. Natural Distribution and Native Habitat

1. Geographic Distribution

• Eastern populations: Oujiang and Feiyun River systems, Zhejiang

• Southern populations: Pearl River drainage (Beijiang & Dongjiang tributaries)

• Western populations: Upper Xiang River and its tributaries (Yangtze system)

Absent from: Min River (Fujian), Red River (Yunnan), and other common hillstream regions

2. Native Habitat Characteristics

• Altitude: 100–800 m (occasionally up to 1,200 m)

• Environment: Mountain brooks and fast-flowing forest streams

• Substrate: Smooth cobbles, slate, bedrock

• Water temperature: 16–24°C

• pH: 6.5–7.3

• Dissolved oxygen: >7 mg/L

• Water clarity: Very high

Artificial systems can tolerate long-term temperatures up to 28°C when oxygenation is sufficient.

III. External Morphology

Pseudogastromyzon fangi possesses a cylindrical body with a straight dorsal profile, highly adapted for clinging to stones in fast currents.

Color Pattern:

• Base color: Pale grey to light brown

• Head to pectoral-fin base: Densely covered with fine dark spots

• Midbody to caudal peduncle: 6–9 vertical dark bands

• Anterior bands thin and dark; posterior bands broader and paler

• Bands often incomplete, fragmented, or expanding into irregular blotches near the tail

• Dorsal and caudal fin margins carry fine spotting

Functional Structures

• Lower lip modified into a three-lobed adhesive disc (central lobe + two lateral lobes) for strong attachment

• Mature males develop keratinized tubercles on the snout, especially during breeding season

IV. Temperament and Behavior

• Strictly benthic, resting in crevices during daytime

• Most active at dawn and dusk

• Moves slowly while grazing, “walking” using pectoral fins

• Extremely peaceful; suitable for small groups

• Capable of maintaining firm attachment even in strong current

V. Feeding Ecology

Natural Diet

• Diatoms and green algae biofilm

• Aquatic insect larvae

• Small benthic invertebrates

Not a strict herbivore — but excessive protein often leads to digestive disorders.

Excellent natural algae grazer and biofilm cleaner.

VI. Reproductive Notes (Observed in Captivity)

• Breeding season: April to June (water temperature stable above 22°C)

• Courtship: Males vibrate pectoral fins to attract females

• Spawning: Adhesive eggs deposited on undersides of stones or in narrow crevices

• Incubation: Requires flowing water for oxygenation

• No parental care

Breeding difficulty: ★★★★☆ (High)
Requires simulated current, clean substrate, and suitable spawning surfaces.

VII. Care Difficulty and Suitable Keepers

Care Level: ★★★☆☆ (Moderate to advanced)

Recommended for:

• Experienced stream-tank aquarists

• Keepers able to maintain clean substrate and stable water quality

Not suitable for:

• Beginners

• Warm-water systems without temperature control

Primary causes of failure:
Organic buildup in substrate, stagnant flow, excessive high-protein feeding

✅ Success formula:
Temperature ≤28°C + High oxygen + Pre-grown algae on stones

VIII. Aquarium Care Guidelines

1. Aquarium Size

• Small group (2–6 individuals): 40 cm tank (30–40 L) sufficient

• Larger groups (≤20): 60 cm tank (≈60 L) recommended

Can be mixed with peaceful mid–upper layer fish to fully utilize water space.

2. Water Parameters

3. Tank Setup

Substrate:
Fine river sand (1–2 mm), 2–3 cm depth

Hardscape:
Large quantities of smooth river stones, slate, or shale
Stones should be pre-conditioned with algae for 2–4 weeks

Lighting:
Moderate intensity, 6–8 hours daily to promote diatom growth

Filtration & Flow:
Outlet directed along the substrate to create gentle circulation and prevent waste accumulation

💡 Algae-covered stones = natural feeding stations and long-term stability.

IX. Feeding in Captivity

Primary food:
Natural algae biofilm (ideal)

Supplementary foods:

• Sinking spirulina wafers

• Blanched spinach

• Spirulina paste

Occasional treats:
Micro-worms, finely chopped bloodworms (≤ once per week, very small amounts)

Avoid:
Floating pellets, high-fat foods, dry carnivore feeds

Feeding frequency:
Every other day; amount consumed within 2 hours

X. Compatibility and Conservation Notes

Suitable Tankmates

• Peaceful mid–upper layer fish (White Cloud Mountain Minnows, danios, barbs)

• Adult ornamental shrimp — no competition, no disturbance

Avoid Keeping With

• Plecos and large suckermouth catfish (competition and stress)

• Aggressive species (bettas, cichlids, large cyprinids)

• High-density bottom dwellers

Conservation Reminder

• Endemic Chinese species with narrow distribution

• Wild populations sensitive to pollution

• Collection regulated under Chinese law

👉 Prefer captive-bred specimens
👉 Reject wild-caught fish of unclear origin
👉 Observe responsibly — photograph only, do not disturb

XI. Summary

Pseudogastromyzon fangi is a large, beautifully patterned endemic hillstream loach.
Its dense head spotting transitions naturally into vertical body bands, with males bearing snout tubercles and a highly specialized three-lobed adhesive disc.

It does not require massive aquaria —
A 40 cm tank supports small groups comfortably, while a 60 cm system accommodates up to ten individuals with ease.

With clean flowing water, algae-covered stones, and moderate temperature, it becomes:

• A silent guardian of water quality

• An efficient natural algae controller

• A refined centerpiece for advanced stream aquaria

Rhinogobius zhoui (Species Overview)

← Back Goby (genus overview)
I. Basic Information

Common Name: Zhou’s Gudgeon
Scientific Name: Rhinogobius zhoui
Family / Genus: Gobiidae · Rhinogobius
Native Range: Lianhuashan Stream system, Haifeng County, Guangdong, China

Adult Size: 5–8 cm
Year of Description: 2008
Type Specimens Deposited at: Fish Collection of Shanghai Ocean University

Ecological Type:

• Endemic freshwater goby of southern China

• Landlocked life history (no marine larval phase)

• Extremely narrow distribution range

Reference Note:
General taxonomic information can be found on Wikipedia:
https://en.wikipedia.org/wiki/Rhinogobius_zhoui

However, current field observations and collection records indicate that this species is confirmed only from Guangdong Province, specifically the Lianhuashan stream system in Haifeng County.
Records mentioning distribution in Guangxi are not supported by verified specimens and are considered inaccurate at present.

II. Natural Habitat

Inhabits clear mountain streams and small hill rivers
Moderate to fast current with consistently high dissolved oxygen
Substrate dominated by sand, gravel, and rounded stones, with numerous rock crevices
Water remains clear year-round with abundant aquatic insect fauna

Typical environmental conditions:

• Water temperature: 18–26°C

• Slightly acidic to neutral pH

• Continuous flow and high oxygen saturation

III. Morphological Characteristics

Adult Male:
Head and body pale whitish with a faint bluish iridescence
Fine reddish-brown stripes around the eye and along the anterior orbital margin
Six to eight orange-red blotches arranged regularly along the lateral body
Cheeks and branchial membranes bright white, without markings
First dorsal fin largely white, lacking any dark spot
All unpaired fins with broad bright white margins, inner portions orange-red
Pectoral fin base white, often with a faint dot near the upper central region

Adult Female:
Body color light brown to pale grey
Six to eight orange-red lateral blotches present
Distinct black blotch usually present on the upper middle of the pectoral fin base
Fins mainly orange with narrow or indistinct white margins

Diagnostic features:

• Regular orange-red lateral blotches

• Broad white margins on unpaired fins

• No black spot on first dorsal fin

• Slender, small-bodied stream goby profile

IV. Behavior and Territoriality

Exhibits clear territorial behavior, especially during the breeding season
Adult males actively defend benthic territories and shelters
Short chases and ritualized confrontations are common between rival males

Seasonal pattern:
Territorial intensity and display activity increase markedly in summer, coinciding with reproductive period

V. Feeding Ecology

Natural diet dominated by benthic invertebrates:

• Small freshwater shrimps

• Aquatic insect larvae

• Tiny crustaceans and worms

In captivity, readily accepts:

• Live or frozen bloodworms

• Brine shrimp

• Small benthic invertebrate foods

A typical carnivorous hill-stream goby.

VI. Coloration and Reproductive Behavior

Color development period: summer, synchronized with breeding season

During reproductive season, males develop pronounced nuptial coloration:

• Intensified orange-red blotches

• Stronger contrast between body and fin margins

• More vivid white fin edges

• Increased display and territorial activity

Reproductive mode:
Eggs deposited beneath stones, tiles, or inside crevices
Male guards and ventilates eggs until hatching
Larvae become benthic immediately after hatching, without pelagic dispersal

VII. Difficulty of Maintenance

Difficulty: ★★★★☆ (relatively demanding among native gobies)

Main challenges:

• High sensitivity to organic pollution

• Weak resistance to bacterial and fungal infections

• Low tolerance to unstable water parameters

Key requirements:

• Permanently high dissolved oxygen

• Excellent water cleanliness

• Stable temperature, minimal fluctuation

VIII. Aquarium Husbandry Recommendations

1. Tank Size and Density

40 cm tank (30–40 L): 1–2 individuals recommended
60 cm tank (60 L): no more than 4 individuals

Each fish requires its own benthic territory with shelter.

2. Water Parameters

3. Aquascaping and Maintenance

Substrate: fine sand or sand–gravel mix
Hardscape: abundant stones and crevices forming territorial shelters
Filtration: strong biological filtration and circulation

Maintenance focus:

• Frequent partial water changes

• Prevent organic accumulation

• Maintain long-term water clarity and oxygenation

IX. Community Considerations

Primarily a benthic, territory-based species
Best maintained either singly or in spacious tanks with abundant shelters
When multiple males are present, visual barriers and rock structures are essential to reduce conflict

X. Conservation Notes

Known only from a single watershed in Guangdong
Extremely limited natural distribution
Wild populations affected by habitat disturbance and aquarium collection

Conservation recommendations:

• Prioritize captive-bred individuals

• Avoid wild collection

• Observe and document rather than harvest

XI. Summary

Rhinogobius zhoui represents one of the most localized and distinctive endemic gobies of southern China.
With refined nuptial coloration, strict habitat preference, and strong territorial behavior, it is both an ornamental and scientific species of high value.

In a stable hill-stream aquarium with clean water, strong flow, and adequate shelter, Zhou’s Gudgeon reveals its full reproductive coloration and natural behavioral repertoire — a true symbol of China’s native stream goby fauna.

Species Overview (Beaufortia kweichowensis)

← Back to Loach (genus overview)

I. Basic Information

• Chinese Name: 贵州爬岩鳅

• Common Name: Guizhou Hillstream Loach

• Scientific Name: Beaufortia kweichowensis

• Family / Genus: Gastromyzontidae · Beaufortia

• Native Range: Mountain streams of Guizhou Province, China

• Adult Size: 6–7 cm

• Market Status:
  The most common and widely traded hillstream loach. Artificial breeding is stable. Three color forms are currently available: wild-type, red morph, and yellow morph.

II. Natural Habitat

• Inhabits clear mountain streams with moderate to strong current

• Substrate composed of smooth stones and slate, without mud or silt

• Water temperature: 16–24°C

• High dissolved oxygen and excellent water clarity

• Feeds exclusively on natural biofilm growing on rock surfaces

III. Morphological Characteristics

• Body cylindrical, anterior portion flattened ventrally, posterior slightly laterally compressed

• Base coloration grey-brown to dark brown, ventral side pale yellow

• Head and dorsal surface densely covered with fine, evenly distributed dark round spots, without transverse bands

• Pectoral and pelvic fins with distinct white outer margins and a sharp black inner line — the most stable diagnostic feature

• Dorsal and caudal fins marked with rows of black spots forming longitudinal patterns

• Adult males develop small keratinized tubercles on both sides of the snout

Color Variants

All forms lack blue fins, green patches, and transverse bands.

IV. Behavior and Temperament

• Remains attached to rock surfaces throughout the day, slowly grazing

• Slightly more active at dawn and dusk; mostly stationary during daytime

• Non-aggressive and highly tolerant of conspecifics when sufficient attachment surfaces are provided

• Locomotion is performed by “crawling” with the pectoral fins; rarely leaves the substrate

V. Feeding Ecology

• Specialized grazer of epilithic algae, including diatoms, green film algae, and brown biofilm

• In mature hillstream aquaria, continuous algal growth eliminates the need for supplemental feeding

• When biofilm is abundant, feeding is entirely unnecessary

• Refuses bloodworms, tubifex, pellets, and all high-protein animal-based foods

📌 This is not a fish that requires feeding — it is a functional algae grazer.

VI. Reproduction (Artificial Observations)

• Breeding season: April to July (22–25°C)

• Eggs are deposited on the underside of stones or in crevices and are adhesive

• Fry begin grazing microalgae immediately after yolk absorption

VII. Husbandry Difficulty

• Difficulty Rating: ★★★☆☆ (relatively easy among hillstream loaches)

Key Success Factors

• Water temperature ≤28°C (heat is the primary cause of mortality)

• Strong current and high dissolved oxygen

• Clean substrate without organic accumulation

Primary Causes of Failure

• High temperature

• Stagnant water

• Thick muddy substrate

• Improper feeding with high-protein diets

VIII. Aquarium Care Recommendations

1. Tank Size and Stocking Density

• 40 cm tank (30–40 L): 2–6 individuals

• 60 cm tank (60 L): up to 20 individuals

Condition: sufficient smooth rock surfaces for attachment and grazing.

2. Water Parameters and Flow

3. Aquascaping and Maintenance

• Substrate: fine river sand (1–2 mm), depth ≤2 cm

• Hardscape: abundant smooth stones, slate, or flagstone (primary grazing surfaces)

• Lighting: 8–10 hours daily (high light encourages natural algal growth)

• Filtration: hang-on filters, waterfall filters, or small circulation pumps recommended

• Maintenance: remove algae from glass and equipment, but preserve biofilm on stones — this is the feeding ground

💡 In a healthy hillstream aquarium, algae are not a problem but a resource — this species exists precisely for that purpose.

IX. Feeding Guidelines

• Under normal conditions, no feeding is required

• Temporary supplementation only in extreme situations:

  • Newly established tanks without established biofilm (a small piece of blanched spinach may be offered and removed within 3 days)

  • Rare cases of abnormal emaciation

Routine feeding is prohibited:
Any sinking food may pollute the substrate and cause serious health problems.

X. Tankmates and Conservation

Compatible Tankmates

• Peaceful mid–upper layer fish: White Cloud Mountain Minnow, Danio, small barbs

• Adult ornamental shrimp: Cherry shrimp, Fire shrimp

Incompatible Species

• Plecos and loricariids (competition and physical suppression)

• Aggressive fish (bettas, cichlids)

• High-density benthic species (competition for attachment surfaces)

Conservation Note

• Endemic species of China, subject to general wildlife protection

• Most market specimens are captive-bred; captive stock is strongly recommended

• Wild collection is discouraged — observe without disturbance

XI. Summary

The Guizhou Hillstream Loach is one of the most efficient native algae grazers for hillstream aquaria. It does not jump, does not harass shrimp, and does not require feeding. Its sole task is to remove stubborn biofilm from stone surfaces.

Stock 2–6 individuals in a 40 cm tank or up to 20 in a 60 cm tank. As long as temperature remains low, current strong, and substrate clean, it will remain entirely self-sufficient.

You provide flow and light.
It provides cleanliness.
This is the natural contract of a true hillstream aquarium.

A compact external digital aquarium thermometer designed to stick to the outside of your fish tank. Clear digital display, fast response, and precise readings—no probes, no wires, no contact with water.

Accurate Digital Temperature Display

• Display resolution: 0.1°C

• Measurement accuracy: ±0.5°C

• Clear LED digits for easy reading, even at a distance

Designed for aquarists who want more precise temperature control than traditional analog thermometers.

Fast Temperature Updates

• Measurement cycle: every 5 seconds

• Near real-time temperature changes

• Ideal for monitoring heater performance and daily fluctuations

External Adhesive Design

• Attaches to the outside glass of the aquarium

• No parts inside the water

• Safe for fish, shrimp, plants, and sensitive species

• Clean look inside the tank

Wide Temperature Range

• Measurement range: 0–60°C

• Suitable for tropical, freshwater, and saltwater aquariums

Durable & Compact

• Material: ABS

• Size: 45 × 45 × 11 mm

• Slim profile, takes up minimal space on the tank wall

Product Specifications

• Product Name: Aquarium Thermometer

• Type: External Adhesive Digital Thermometer

• Display Resolution: 0.1°C

• Accuracy: ±0.5°C

• Measurement Interval: 5 seconds

• Temperature Range: 0–60°C

• Material: ABS

• Size: 45 × 45 × 11 mm

Lianjiang Hillstream Loach (Pseudogastromyzon lianjiangensis) – Species Profile

← Back to Loach (genus overview)

The Lianjiang Loach is a geographically distinctive member of the genus Pseudogastromyzon. It was formally described in 1981 by Zheng Ci-Ying based on specimens collected from mountain streams of Dananshan, Puning, Guangdong Province, China.
Named after the Lianjiang River system to which it is endemic, this species stands out among native stream fishes for its bright body coloration and strikingly colored fins.

I. Basic Information (Species Snapshot)

Chinese common name: 练江拟腹吸鳅
Aquarist trade name: Lianjiang Loach
Scientific name: Pseudogastromyzon lianjiangensis (Zheng, 1981)
Family: Gastromyzontidae
Genus: Pseudogastromyzon
Native range: Mountain streams of the Lianjiang River basin, Guangdong Province, China (upper reaches of Puning and Chaoyang)
Maximum length: Up to 7 cm
Lifespan: Approximately 4–5 years under proper captive care
Conservation status: Chinese endemic species; not listed as a nationally or provincially protected species, but wild populations are subject to general protection under China’s Fisheries Law
Endemism: Currently known only from the Lianjiang River system

📌 In international communication, the scientific name Pseudogastromyzon lianjiangensis should be used.

II. Natural Distribution and Habitat

1. Geographic Distribution

Upper mountain tributaries of the Lianjiang River basin, including streams in Dananshan (Puning) and western Chaoyang.

2. Habitat Characteristics

• Shaded mountain streams with rocky substrates

• Gentle to moderate water flow

• Clear, well-oxygenated water

• Temperature: 16–24 °C in the wild

• pH: 6.8–7.4

• Soft to moderately soft water

In captivity, the species can tolerate temperatures up to 28 °C when maintained long-term under stable conditions.

III. Morphological Characteristics

The Lianjiang Loach exhibits a vivid yet harmonious coloration uncommon among stream-dwelling loaches:

• The body displays a warm yellow base color gradually transitioning to orange-red toward the posterior, with the ventral region often showing a stronger reddish hue;

• Some individuals exhibit a more uniform pale orange or yellow-orange tone, representing normal intraspecific variation;

• Fine, evenly distributed dark spots cover the body from dorsal to ventral surfaces, regular in density and pattern;

• The dorsal, pelvic, and caudal fins are predominantly blue, clear and translucent in appearance, forming the most visually striking feature of the species;

• All fins are edged with distinct black margins, enhancing contrast and definition.

💡 The appeal of P. lianjiangensis lies not only in its warm yellow-to-orange body coloration, but especially in its clear blue fins, which resemble reflected sky over flowing water. Combined with its evenly distributed spotting, the overall appearance is remarkably balanced and refined.

IV. Behavior and Ecology

• Benthic species, spending most of the day adhering to rock surfaces

• Activity increases during dawn and dusk

• Feeds primarily by grazing algal films and biofilm from submerged stones

• Non-aggressive; suitable for small groups

• Locomotion consists of pectoral-fin “crawling” combined with short tail-assisted hops

V. Difficulty and Suitability

Care level: ★★★☆☆ (moderately demanding)

Suitable for:
Aquarists with experience in native stream aquaria who can maintain clean substrates, stable water quality, and adequate oxygenation.

Not suitable for:
Beginners or keepers unable to control water temperature below 28 °C in warm climates.

Common causes of failure:
Accumulated waste in the substrate, stagnant water conditions, and inappropriate high-protein foods.

✅ Key success factors:
Water temperature ≤28 °C, high dissolved oxygen levels, and rocks preconditioned with natural algal growth.

VI. Aquarium Care Guidelines

1. Tank Size

• Pair: 40 cm aquarium (30–40 L)

• Small group (3–5 individuals): 60 cm aquarium (≈60 L)

• Can be kept with mid- and upper-water species to fully utilize vertical space

2. Water Parameters

3. Aquascaping

• Substrate: fine river sand (1–2 mm), 2–3 cm depth

• Hardscape: abundant smooth stones or slate, preconditioned with algae

• Lighting: moderate intensity, 6–8 hours daily to promote diatom growth

• Filtration output directed toward the substrate to maintain circulation and oxygenation

💡 Algae-covered stones function as a natural feeding platform and are essential for long-term success.

VII. Diet and Feeding

• Primary food: naturally occurring algal and biofilm growth

• Supplemental foods: sinking spirulina wafers, blanched spinach, spirulina paste

• Avoid: bloodworms, red worms, floating pellets, and high-protein animal foods

• Feeding frequency: small amounts every other day to prevent substrate pollution

VIII. Community Compatibility

✅ Compatible with peaceful mid- and upper-water species
❌ Avoid cohabitation with aggressive bottom dwellers, food competitors, or species requiring high-protein diets

IX. Legal and Conservation Notes

• Not listed under China’s National Key Protected Wildlife List

• Endemic to a very limited drainage system

• Wild populations are generally protected under the Fisheries Law, with unlicensed collection prohibited in many areas

• Captive-bred individuals should be prioritized

• Field observation should follow ethical principles: observe and photograph without disturbance

X. Summary

The beauty of the Lianjiang Loach lies in the contrast of colors:
a warm yellow-to-orange body, vivid yet gentle,
paired with blue fins of exceptional clarity.

Its evenly distributed spotting adds balance rather than excess,
resulting in an appearance that feels precise and complete.

Some keep it as an effective grazer of natural algae;
others dedicate an entire aquarium to preserve the colors of a southern Chinese mountain stream.

With water temperatures kept below 28 °C, gentle flow, and algae-covered stones,
this species will cling steadily to the rocks, graze calmly,
and display its quiet brilliance in the aquarium.

This hang on back aquarium filter is a compact yet powerful HOB filter designed for 40–100cm fish tanks. Featuring a 5-layer modular filtration system, large-capacity filter chamber (up to 2594ml), and adjustable oil film skimmer, it efficiently removes debris, isolates fish waste, and promotes beneficial bacteria growth. With adjustable water flow, ultra-quiet operation, and a 3-in-1 design (filtration, circulation, and surface cleaning), it delivers stable, crystal-clear water while reducing maintenance—ideal for both beginner and advanced aquarium setups.

Key Features

• 5-Layer Modular Filtration System
  Combines bio sponges and filter media to trap debris and support multi-stage beneficial bacteria growth for stable water quality.
• Large Capacity Filter Chamber (Up to 2594ml)
  Holds more filter media, extends cleaning intervals, and improves biological filtration efficiency.
• Oil Film Remover (Adjustable Skimmer)
  360° rotating surface skimmer removes oil film, enhances oxygen exchange, and keeps water surface clean.
• Adjustable Water Flow & Waste Isolation
  Fine-tune flow for different fish types, while layered design isolates solid waste to reduce clogging and ammonia spikes.
• Ultra-Quiet 3-in-1 Operation
  Combines filtration, water circulation, and surface cleaning in one unit with low noise—perfect for bedrooms and living spaces.

Size