Ok, so I went to the LFS and saw they had clown loaches, and like the noobish one I am I confused them with Yo-Yo Loaches and bought one. I got home and looked them up to find out they get BIG. I've heard they grow very slow, but the question is how long do I have before he outgrows my tank? (See specs below). Hes is currently only 1.5" at the moment. Also I only got one but now I'm reading they prefer groups?