Hi before we converted our tank to tropical we had it running as a cold water set up and we were down to one fish, a weather Loach called Snakey-Lakey he was a favourite with the kids and quite a character but we wanted a tropical tank. So we got him a small plastic tank thinking that he is already very old and won't last long......That was 5 years ago he is quite big and is very difficult to cleanout as I have had to retrieve him from the floor on many occasions due to escape attempts. I have recently read that they can also live in a tropical tank and was wondering if we could add him to our tropical tank. I would hate to shock to poor old thing to death as he is a lot of fun to watch but if this can be done what is the best way to do it. We have red eyed red tailed puffers, dwarfe gourami's, plattys, a guppy, and neon tetras. I am worried there might be some bullying going on but he is a large fish and I think he could stand up for himself.