Currently I have 4 glass cats and 6 neon tetras in a well-planted 10 gallon tank. All the fish seem quite content and healthy. The glass cats are particularly active at night and enjoy keeping a low profile behind the plants during the day. I believe they are the Kryptopterus minor variety as they are approximately 2 inches in length.
I am looking to purchase a larger tank for the glass cats. I was hoping a 20 gallon long might work, as that would fit nicely on a stand I already have. I have one other 20 gallon long and I really like that footprint. I could go larger, possibly up to a 55 gallon, but then I would need to get another stand or build one.
Also, I'd like to add 2 more glass cats as 6 seems to be the minimum number to keep them happy. I purchased the glass cats on a whim, but I want to make sure I house them properly.
So would 6 glass cats in a well-planted 20 gallon long work? If so, what might be some good tank mates. I am particularly fond of the smaller shoaling fish: mosquito rasbora, ember tetras, Celestial Pearl Danios (if I could locate some), etc.
I am open to all suggestions at the moment.