i just got my 150 up but its been cold so I havent put many fish it in yet but i really want to so Im going to have to buy a heater for it, petsmart was all sold out so i turned to ebay, now my question is for a 150 what would you recommend for heaters, 2 200 watts, 2 250s, 1 300, 1 500 or 2 300's. The coldest it should get now would be 55 degrees, my tank is outside.
