i still wouldnt go anything below a 150 gallon. with a 150G you can do a fluval Fx5 with a aquaclear 110 and a 300 watt heater. a 150 watt heater can heat a 75 just fine. but try to go for a 150G, atleast anything above a 75. if you dont want to add anything but him, then 125G min.


