I meant like dwarf puffer in 1 half and guppies and snails in the other. I heard guppies breed real fast and kill their own fry so I might just get snails and leave it un divided and let the population build up before putting in the dwarf puffer.
My dwarf puffer lived with guppies and ghost shrimp peacefully. He never went after full grown fish. He did eat babies and shrimp eggs though. Every time I would buy aquatic plants there'd be snail eggs on them. Before I knew it my tank was infested with mud snails. My indian dwarf puffer made them disappear in a week. I also would put 5 gallon buckets outside to collect mosquito larvae and daphnia-just fill it up and they'll show up in a couple of days. One of the only fish I never really had to buy food for.