I have a question. Ive been using an undertank heater by zoo-med and its not working. It only raises it to 71F and I know this is not enuf for a bical,raff,ventrat,ventricosa,coccinea, and MAYBE a ceph. Does anyone have reccomendations on how to make the undertank heater more effective? Ive tryed it both on the side and bottom but both dont work. Im using one 25 watt compact bulb equivelent to 100watt and Im not sure if this is enuf light either. Last, wat is better as a heating source a ceramic heater or infrered light? Ive used the infrered light b4 but i think it burned my plants. But not sure. Any help would be greatly appreciated. Thanks!