I feel like lately that I want to get rid of my Pike. I love him and all. He's a super cool fish. But growing rapidly in a 55g just doesn't seem suitable considering he'll get to about 10" before the time I buy a new tank. So I think I may get rid of him. My question is, would it be ok to put maybe one or two firemouths in with my Tex and GT? I used to have them in my 20g long ago and have always had a love for them. And they seem to be a smaller breed, in terms of adulthood anyways, so I figure a 55g with only two other fish who are currently 4.5" and 2.5", one or two FMs may be alright. Any opinion on this?