I am currently cycling my tank and am looking for a heater. I know not to put an open heater in the aquarium, but I do not have a sump, so I will need a heater guard. I don't have a drill, and don't know how to make one from PVC pipe. So, I want to buy one. I was thinking the Hagen tronic heater because they make a guard for it, but I can't find any sites that have the guard in stock. My LFS says they don't carry them. Does anyone know where I can get ahold of one? Also, what watt should I get for a 180?