OK so i have my tank which ive kept Piranhas for a few years. My Gf decides to try something with ont of my extra tanks. She now has a 29 gal tank with an AC110 filter(Turned to low of course). After i got her to properly cycle the tank and all se stocked it slowly. So now at its latest stock level there are 2 Dwarf Gouramis, 12 Neon Tetras, 2 Albino Cory Cats, and a Male and Female Betta, and a Figure 8 Puffer that didnt look like it was doing good yesterday. Are there any probs with all these living together? The Bettas have their own tank but she wanted them in the big tank for now. We are going to try to breed the Bettas in the near future. I think i cna handle breeding them and have a better outcome then when i used to breed Piranhas since they wont eat eachother. Thanks alot for your help.