ok, i have a problem. Something like 85% of my fishtanks at my store run off of a central filtration unit. Thats also where my heater(s) are located. Well, my main heater has been out for a while now, and I've been barely making it with a few 500 heaters. I need to know where I can get a huge heater, and I guess the main concern is that my water is constantly rushing through so the heaters are having a hard time heating the water up as it flows by (as opposed to sitting in a resevior or something). I'm freaking out cuz I'm burning up heaters left and right.
