I currently have a 30 gallon tank with 5 rummynose tetras, 2 zebra botias, three dwarf gouramis of different colorations, two ghost catfish, and a male and female betta (surprisingly the male betta gets along with everyone no problem!). There is also a small yellow catfish in my tank and nobody knows what it is. It is about 2-3 inches long and it has a black spot right in the middle of its body directly below its dorsal fins behind its gills on both sides. It is fairly peaceful and has never bitten any fish but sometimes chases the botias. I've been to multiple pet stores and no one seems to know what it is. Also it was previously in a 55 gallon tank with african cichlids and it was in there for a few months so it probably won't get much bigger. This really isn't a problem but i would appreciate it if someone could help me out with it. Thanks!