The dwarf puffers (the only one I would put in a 10 gallon) will need pond snails rather than clams as his food source. You can easily breed them in a second tank. Occasionally give blood worms and mysis shrimp to them for best health.
Otos can live with dwarf puffers.
In any dwarf puffer tank you need to use decor or plants to create zones of territory for each puffer by breaking their line of sight and providing hiding places.
Otos can live with dwarf puffers.
In any dwarf puffer tank you need to use decor or plants to create zones of territory for each puffer by breaking their line of sight and providing hiding places.