I recently bought 5 tiger barbs and an albino barb for my 55 gallon tank. I believe I have 1 male tiger and 4 females but I'm not sure what the albino is. He/she just stays in a corner by itself while the others swim around together. Do tigers and albino tigers not mix? Is this albino another male? I don't want to stress him and I'm confused as to why he isn't schooling with the others. I wouldn't be able to add any more fish right away to my tank but should I bring the albino back or buy some other albinos when my tank is ready?