when kept with their own species, in a large tank, they are not agressive. also, archer fish can live in fresh, brackish, or saltwater. so they would do fine as freshys :lol:bgexotics said:I would avoid Archer fish. They are a semi-agressive brackish water species, who require a pretty high salinity to be happy. Obviously the salt would be bad fro the frogs and your plants. Also archer fish are pretty agressive feeders and will attack anything that falls in the water. I think small tetras or dwarf killifish species make better tankmates.