I imagen you are talking of plecos or cories. The plecos can get pretty big and yeah I am thinking of the second one it just means less space for fish. Has for the bathroom...its close enough.
Cories have to be in sholas of 6 at least. what tank size do you have? Plecos can be on their own pretty much but need a large tank.
I would say 20ish gallons? I might be wrong...yeah...that might be small for the pleco. I used to have many tanks but right I would be th eoen taking acre of them, because im here they had to be given away. My mom is taking care of the guppy tank still, she didn't give that one away. But I do plan on getting more tanks when im back home. I want to give a tyr to saltwater tank too.
Just kidding, I don't know squat about fish, but I think they're very pretty! 

If I had the time to take care of something so exotic I'd do it! Not to mention learning how to take care of it.... and the money.... I'm sure they're pricey!
Still, very pretty fishy! 

My cats are huge... and I don't mean fat huge. I have a Savannah and a Bengal cat. Small dogs could be a snack for them...
