I'm setting up two new tanks and have researched a little to figure out what fish in each I want. I'm needing to know if anyone see's any problems with my selection and how much of each I should put in to keep things balanced. The first is an 18G tall tank. I was thinking of putting coolie loach, silver hatchetfish, guppys, angels (I'm thinking just two), black mollies, and swordtail. I know a few fish might grow to big for the 18G but my LFS has really young angels so I was thinking of putting those in.
The second tank is a 20G. I was thinking of male betta (only one of course), three spotted gourami (would the feelers be too much for the betta?), clown loach, red-tailed shark, and tiger barb. Now I've been reading a book I have that says that gourami's, tiger barbs, and the betta can be put together but I'm not sure.
I'm going to have real plants, penguin bio-wheel 170s, and two full spectrum flourecent plant/aquarium lights on both. Thanks.
-Josh
The second tank is a 20G. I was thinking of male betta (only one of course), three spotted gourami (would the feelers be too much for the betta?), clown loach, red-tailed shark, and tiger barb. Now I've been reading a book I have that says that gourami's, tiger barbs, and the betta can be put together but I'm not sure.
I'm going to have real plants, penguin bio-wheel 170s, and two full spectrum flourecent plant/aquarium lights on both. Thanks.
-Josh
Black mollies and swordtails like a little salt in their water so you may want to keep the live bearers in one tank and the egglayers in the other.Be careful putting betas in with long finned fish,sometimes you get one that will attack anything that looks remotely like another betta. 
