Pink Body Gastromyzon Hillstream Loach

Pink Body Gastromyzon Hillstream Loach (Gastromyzon lepidogaster)

An extremely rare pink body colour form of Gastromyzon hillstream loach, combining unusual collector appeal with natural river-loach grazing behavior.

The Pink Body Gastromyzon Hillstream Loach is a highly uncommon colour form of Gastromyzon lepidogaster, a flattened Borneo sucker-type hillstream loach adapted for life on smooth rocks, glass, and fast-moving freshwater surfaces. This pink body form is especially valuable because it gives the fish a softer, warmer appearance compared with the more commonly searched Green Body form.

This is not a normal “cleanup fish” and not a standard hillstream loach. Pink Body Gastromyzon is best treated as a rare collector loach for mature, oxygen-rich aquariums with stable water, smooth grazing surfaces, and established biofilm. Its beauty is subtle, unusual, and most impressive in a clean planted or river-style display.

We also offer a Green Body form of Gastromyzon lepidogaster. Both forms share the same care requirements; the difference is body colour, rarity expression, and visual style.

Why this fish stands out

• Extremely rare pink body form of Gastromyzon lepidogaster
• Unusual warm body colour compared with standard hillstream loaches
• Flattened Borneo sucker body built for gripping glass, stones, and hardscape
• Natural grazer for biofilm, soft algae, and surface growth
• Excellent for mature planted tanks and river-style aquariums
• Rare collector fish with strong visual difference from common algae eaters

Best for

• Rare loach collectors
• Hillstream aquarium enthusiasts
• Planted tank keepers looking for unusual livestock
• River-style aquarium setups
• Aquascapes with smooth stones, wood, and natural biofilm
• Customers looking for a rare pink-toned freshwater fish in Canada

Topick Aquarium Insight

Pink Body Gastromyzon is a fish for people who appreciate subtle rarity. It does not need exaggerated colours to stand out — the flattened body, soft pink tone, and constant surface-grazing behavior already make it very different from standard community fish.

The key to success is long-term body condition. Gastromyzon may appear to be constantly grazing, but that does not always mean they are getting enough nutrition. Mature biofilm, algae-based foods, and occasional protein-rich frozen foods are important for keeping them full and stable.

We recommend watching the belly and body profile. A healthy Pink Body Gastromyzon should look full, grip strongly, breathe steadily, and move confidently across glass and hardscape.

Pink Body vs Green Body Gastromyzon

Pink Body and Green Body Gastromyzon are the same care level and should be kept the same way. The difference is mainly visual.

• Pink Body: lighter warm pink or flesh-toned body appearance, best for collectors who want the rarer-looking colour form
• Green Body: stronger green or metallic green body impression, best for customers searching the classic Green Borneo Sucker look

Both forms need mature water, strong oxygenation, clean surfaces, and regular feeding. Choose based on the colour form you prefer.

Behavior & Group Size

Pink Body Gastromyzon are peaceful hillstream loaches that spend much of their time gripping glass, rocks, and driftwood. They graze biofilm and soft algae while moving across surfaces in a slow, deliberate way.

They can be kept singly, but group behavior is more interesting. We recommend keeping 3 or more when possible. In larger aquariums with strong flow and many grazing surfaces, a group of 5 or more creates better activity and visibility.

Tank Setup

Pink Body Gastromyzon should be kept in a mature, clean aquarium with high oxygenation. This fish is not ideal for brand-new tanks, low-flow tanks, or aquariums with unstable water.

• Minimum recommended tank: 20 gallons long or larger
• Mature aquarium with established biofilm preferred
• High oxygenation and stable water are essential
• Moderate to strong flow preferred
• Smooth stones, driftwood, and glass provide natural grazing surfaces
• Bright lighting can encourage algae and biofilm growth
• Secure lid recommended

A planted river-style layout is ideal. Smooth stones and open flow are more important than heavy decoration.

Water Parameters

• Scientific Name: Gastromyzon lepidogaster
• Common Names: Pink Body Gastromyzon, Pink Hillstream Loach, Pink Borneo Sucker, Borneo Sucker Loach
• Temperature: 20–24°C preferred; slightly warmer only with strong oxygenation
• pH: 6.5–8.0
• Adult Size: approximately 4–6 cm in aquarium trade
• Temperament: Peaceful / mildly territorial around grazing spots
• Diet: Biofilm, soft algae, aufwuchs, algae-based foods, small frozen foods
• Care Level: Intermediate

Stable, oxygen-rich water is the key. Avoid keeping this fish in hot, low-oxygen aquariums, especially tanks with poor flow or heavy waste buildup.

Feeding

Pink Body Gastromyzon are surface grazers, but they should not be left to survive only on whatever algae is already in the tank. Many aquariums are too clean to support them long-term without supplemental feeding.

• Natural biofilm and soft algae
• Algae wafers
• Spirulina-based sinking foods
• Repashy-style gel foods spread on smooth stones
• Fine sinking foods
• Frozen daphnia, cyclops, brine shrimp, or bloodworms in moderation

Offer foods where the fish naturally feeds. Gel foods or algae-based foods placed on rocks often work better than food that falls into areas with strong competition from other bottom fish.

Tank Mates

Choose peaceful tank mates that enjoy clean, well-oxygenated water. Avoid fish that are aggressive, overly warm-water focused, or too competitive on the bottom.

• White Cloud Mountain Minnows
• Danios
• Small peaceful barbs
• Peaceful gobies
• Other compatible hillstream loaches
• Peaceful community fish in cooler, oxygen-rich aquariums

Avoid large cichlids, predators, very warm low-flow community tanks, and aggressive bottom dwellers.

Canada-Wide Live Fish Shipping

Pink Body Gastromyzon Hillstream Loach is available from Topick Aquarium in Canada when in stock. Local pickup is available in Markham, Ontario, and Canada-wide live fish shipping may be available depending on weather, route, and livestock condition.

Important Note

Pink Body Gastromyzon is a rare hillstream loach, not a general-purpose pleco replacement. It may graze algae and biofilm, but it still needs mature surfaces, oxygen-rich water, and regular feeding.

It will not solve every algae problem. Black beard algae, staghorn algae, and heavy long hair algae usually require better control of lighting, nutrients, flow, CO2 stability, and maintenance habits.

FAQ

Is Pink Body Gastromyzon rare?
Yes. Pink Body Gastromyzon lepidogaster is an extremely uncommon colour form and should be treated as a rare collector hillstream loach.

What is the scientific name?
The scientific name is Gastromyzon lepidogaster.

Is Pink Body Gastromyzon a hillstream loach?
Yes. It is a Gastromyzon hillstream loach, also searched as a Borneo sucker loach or rare algae-grazing loach.

What is the difference between Pink Body and Green Body Gastromyzon?
Care is the same. Pink Body has a lighter warm pink body tone, while Green Body has a stronger green or metallic green appearance.

Is it a good algae eater?
It grazes biofilm and soft algae, but it should not be used as the only algae-control solution. It needs supplemental feeding for long-term health.

Does it need strong flow?
It does best with clean, oxygen-rich water and moderate to strong flow. Oxygenation and stability are more important than extreme current alone.

Can it live in a normal tropical tank?
Only if the tank is mature, clean, well-oxygenated, and not too warm. Hot, stagnant tanks are not suitable.

Can I keep it with shrimp?
Yes. Pink Body Gastromyzon is generally peaceful with freshwater shrimp and is not an active shrimp predator.

Can I keep only one?
Yes, but a small group is more interesting and active. We recommend 3 or more when possible.