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Gastrodermus guapore is a rare dwarf Corydoras from the Guaporé River known for its peaceful nature and schooling behavior. Perfect for nano and planted aquariums.

Gastrodermus guapore – Rare Dwarf Corydoras from the Guaporé River

Gastrodermus guapore is a small and fascinating dwarf Corydoras species originating from the Guaporé River basin in South America. Known for its delicate size, peaceful temperament, and active schooling behavior, this species is a favorite among aquarists who enjoy nano fish and planted aquariums.

Like other dwarf Corydoras species, Gastrodermus guapore displays lively social behavior and should always be kept in groups. When maintained in proper numbers, they often swim together in small schools and explore both the bottom and midwater areas of the aquarium. This behavior makes them more active and visible compared to many bottom-dwelling catfish.

Their body features a subtle pattern with soft silver-gray tones and delicate markings, giving them a natural and elegant appearance in aquascapes. When placed in planted aquariums with natural décor such as driftwood and leaf litter, they blend beautifully into the environment.

Because of their small size and gentle personality, Gastrodermus guapore is an excellent choice for nano aquariums, planted tanks, and peaceful community setups. They can also coexist safely with shrimp and other small non-aggressive fish.

Key Features

• Rare dwarf Corydoras species

• Native to the Guaporé River basin

• Peaceful and community-friendly fish

• Small size ideal for nano aquariums

• Active schooling and social behavior

• Suitable for shrimp-friendly tanks

• Interesting bottom and midwater activity

Size

• Adult size: Approximately 2.5 – 3 cm

• One of the smaller Corydoras-type species

• Females are usually slightly larger and rounder

Temperament

Gastrodermus guapore is extremely peaceful.

• Completely non-aggressive

• Best kept in groups of at least 6 individuals

• Social and more active when kept in larger groups

• Safe for community aquariums and shrimp tanks

They often swim together and explore the aquarium floor while searching for food.

Water Conditions

Stable and clean water conditions are important for this species.

Recommended parameters:

• Temperature: 22 – 26°C

• pH: 6.0 – 7.5

• GH: 2 – 10 dGH

• Ammonia: 0 ppm

• Nitrite: 0 ppm

• Nitrate: Below 20 ppm

Perform 20–30% weekly water changes to maintain good water quality.

Tank Setup

A natural and planted aquarium environment works best.

Recommended tank setup includes:

• Fine sand substrate to protect delicate barbels

• Live plants and moss for cover

• Driftwood and small caves

• Leaf litter for a natural habitat

• Gentle filtration and good oxygenation

Although they are bottom dwellers, they may also swim in the middle water column, especially when kept in groups.

Minimum recommended tank size is 40–50 liters for a small group.

Feeding Habits

Gastrodermus guapore are omnivorous bottom feeders.

Their diet may include:

• Sinking micro pellets

• Small catfish pellets

• Frozen foods such as daphnia, cyclops, and baby brine shrimp

• Live micro foods

• Crushed flakes

Because of their small mouth size, food should be small or finely crushed.

Feed 1–2 times daily in small portions.

Tank Mates

Gastrodermus guapore are ideal for peaceful nano community tanks.

Suitable tank mates:

• Chili rasboras

• Ember tetras

• Celestial pearl danios

• Small tetras

• Shrimp and snails

• Other small peaceful fish

Tank mates to avoid:

• Large aggressive fish

• Cichlids

• Predatory species

Their small size means they should only be kept with gentle tank mates.

Care and Maintenance

These dwarf Corydoras are easy to care for with proper aquarium maintenance.

Important care tips:

• Keep them in groups of at least 6

• Provide soft sand substrate

• Maintain stable water conditions

• Ensure good filtration and oxygenation

• Feed small high-quality foods

• Perform regular water changes

Healthy fish are active, social, and often seen swimming together around the tank.

Why Choose Gastrodermus guapore?

• Rare and interesting dwarf Corydoras

• Perfect for nano and planted aquariums

• Peaceful and community-friendly

• Active schooling behavior

• Safe for shrimp tanks

• Small size suitable for compact aquascapes

Gastrodermus guapore is an excellent choice for aquarists who enjoy small, peaceful fish with natural schooling behavior. Their gentle nature and subtle beauty make them a charming addition to planted aquariums and nano community tanks. 🐟🌿