This is a discussion on 20g New tank within the Freshwater Fish Pictures and Videos forums, part of the Freshwater Fish and Aquariums category; -->
Hey everyone, great forum thanks for all your help,
I just upgraded from a 10 g to this new 20 g tank...
any thoughts? ...
If you were to add any more fish, it would be either Danios or Barbs. Nothing else. The Rainbow will get 6-8" long and get very territorial. You may have to rehome him eventaully. Tiger Barbs like groups of 6+, and the danions should have at least 5 others in their group with 36" of swiming space for best results.