Glass catfish

The glass-catfish comes from southeast-Asia (Indonesia, Malaysia, Thailand). It lives there in current and oxygen-rich waters with clear water. What makes this ornamental fish so unmistakable is its transparent body structure, which makes both its skeleton and internal organs easy to recognise. The life expectancy of these fish in an aquarium is up to 10 years, provided that keeping and feeding are optimal. The glass catfish is a demanding ornamental fish and makes corresponding demands on its habitat. It quickly resents mistakes in keeping and care. Therefore it is less suitable as a beginner fish.

What distinguishes Indian glass catfish?

The glass catfish is a largely peaceful schooling fish and is well suited for community tanks. When socializing with other fish, however, it should be noted that they must not be smaller than 4 cm, otherwise they will be regarded as prey and eaten by the glass catfish. Its aquarium inhabitants should not be restless fish species, because too much hectic in the tank causes stress to the glass catfish.

The appearance of Indian glass catfish

As already described the glass catfish is transparent. Its whole skin is slightly fluorescent. The fish has a laterally flattened, slim body and a strongly arched neck. The long anal fin is covered with 48 to 55 lateral fin rays.

Sex differences

Even experts find it difficult to distinguish between the sexes. Outer sex differences are often not recognizable, but females are somewhat plumper than males when they reach sexual maturity. Glass catfish reach a size of up to 8 cm.

Water values for Indian glass catfish

Since glass catfish quickly feel uncomfortable, the optimal water values for their well-being should be checked regularly and adjusted immediately if necessary. If the following conditions are met, the glass catfish feels most comfortable:

  • pH value: 6.0 – 7.0
  • Total hardness up to 10° dGH
  • Temperature: 23 – 26° C

Food and nutrition for Indian glass catfish

Glass-catfish are omnivorous, that is omnivores, however, live in the free nature predominantly from live-food. Therefore you should feed regularly e.g. red or black mosquito larvae, water fleas or brine shrimps(Artemia). The fish also accept flake food or frozen food well.

The ideal aquarium for Indian glass catfish

The pool should have a volume of at least 150 litres, dense border planting and a floating plant cover and be well oxygenated. The substrate can consist of a dark sand/gravel mixture. A few larger roots complete the picture.

Keeping conditions

The fish like a slightly stronger current in the aquarium and oxygen-rich water. The glass catfish is a bottom-dwelling fish, but also often stays in the middle part of the tank. Sufficient aquarium plants serve as hiding and retreat possibilities and increase the well-being of the animals. In the following the most important keeping conditions in short form again:

  • Public pool
  • with stronger current
  • oxygen-rich water
  • Keep groups of > 20 animals
  • Create sufficient hiding places
  • mainly live food is sufficient

Characteristics of Indian glass catfish

The glass-catfish has an interesting, unique swarm-behavior. To show this, it must be kept in groups of at least 20 animals. Then one can observe the following: The swarm stands motionless in the middle of the tank, suddenly a single specimen leaves the swarm, only to return there shortly afterwards. The reason for this curious behaviour is not known.

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