My petsmart doesn't have any more UTH for a 10gallon, only the bigger ones and obviously I can't use that for a 10 gallon. So would it be OK if I used a lamp with a low watted bulb [like 50 watts or something] I will get a thermostat and a thermometer also, but is this OK to use? I work for petsmart and they aren't using UTH only above lamps. I don't want to wait to get him because it's a beautiful one and going to sell quick. Would this be OK?