moving
I have all sorts of fish in my 33 gallon freshwater tank. neon tetras, bala shark, danios, frogs, kribs, severums, glass fish, glass catfish, rams, gouramis, paradise fish, fancy's, weather loaches, giant thai loaches, shrimp clown loaches, platys, rasboras, algae eaters, pleco, beta, rummy nosed tetras. I also have all live plants. Strangely enough, all these fish live together with no problems, no fin nipping, no fighting. They all have their own space and they all swim together. The only ones that have a problem are the 2 paradise fish, they hate each other.
The 15 gallon tank has 2 spotted puffers, 2 dwarf puffers, 4 mollies, 1 algae eater, snails(feeders), ghost shrimp(feeders). This tank also has many live plants. The puffers are doing great and are really playfull with one another. As long as you keep them fed regularily, they leave the other fish alone.