My fiance has 2 brackish water leopard puffers. They are small now and we are keeping them in a 5 gallon hexogonal tank. But they are starting to grow up. What would be the ideal setup for them (gallons/lighting/filtration/substrate/hiding places). I cant find much information on them except their salt tolerance which we already know and that they can get up to 4 inches a piece. Also was wondering if they can be housed with any other fishes - we know they are semi agressive but can we put anything else with them? Also any fedding recommendations? We can only get them to eat frozen brine shrimp and attempts to hatch other brine shrimp have been unsucessful. Please help!