My MAIN concern right now is the heat. In my current setup I have a UTH temp controlled at 90, and a heat lamp on a dimmer to control the air temp at a steady 80-82 tank wide. Now using the UTH on the side like stated seems fine for bioactive and seems viable, but the air temp seems to be the tricky part since my home is kept at 77 degrees and the humidity would make it drop in temp.