Can a pictus catfish be put into 10 gallon aquarium if it is the only fish?

A 10-gallon aquarium is generally considered too small for a pictus catfish.

Here's why:

* Pictus catfish are active: They need space to swim and explore, and a 10-gallon tank doesn't provide sufficient room for their natural behaviors.

* They grow large: Pictus catfish can reach up to 6 inches in length. A cramped tank can lead to stress and health problems.

* Waste production: A larger fish produces more waste, which can quickly pollute the water in a small tank.

Minimum tank size for a pictus catfish: A 20-gallon tank is the minimum recommended size for a single pictus catfish.

Alternatives: If you're set on keeping a catfish in a 10-gallon tank, you could consider smaller species like:

* Corydoras catfish: These are small and peaceful, and can be kept in groups of 3-5 in a 10-gallon tank.

* Dwarf plecos: These are also relatively small and can be housed in a 10-gallon tank, but they are not as active as pictus catfish.

Remember: It's always better to err on the side of caution when it comes to aquarium size. Provide your fish with ample space to thrive and prevent health problems.