Have 3 myself. They are the mini version of Pac-Man catfish. I have 2 chaca chaca and 1 baknenesis. They are slow growing. Not much space is needed. They basically lie around under wood/leaves and wait for food. No flow in the tank. Do need clean water. I have them in plastic tub and gonna be moved to my pending sump (once my 120 is up and running). I add tannins to the tank. The pH is low and i do this cause I feed love food. The low pH helps prevent infection. I usually do water changes every other day and tannins back into the tank. Bacteria won’t be established with low pH’s.
In the process of trying to wean onto prepares foods but hard. Still on going. I’ll try to update the thread later.