So, I have a 29g tank and a 10g tank. I had been using the 10 as a hospital tank while my common was recovering from hole in the head. The common was introduced to the 29g tank and won't leave the moor alone a minute. The common is certainly more active, of course. This is not just during feeding. The 29g is new to the common, so there wouldn't be a need to rearrange? Did I make a mistake by getting the moor? It's like fish bullying and I don't want Johnny to have to live like this. I put the common back in the smaller tank for the night. Oh and the common is about 2 1/2" and the moor is 2", both without the tail. Appreciate in advance.