I hope you guys can offer an opinion on this. Here in Canada things are so much more expensive than the US. I have a new larger tank (33gal) and the UTH for the tank (11x17) had a huge difference in price between brands. ZooMed's is about $75 and Ecoterra's is $35 (on special from$40). What's with the big price diff? Is ZooMed that much better? Is Ecoterra crap? I have a ZooMed in my little 10 gallon tank and I find I need a thermostat cause its a bit erratic so I'm not that impressed. But if Ecoterra is worse, is it in my best interest to pay the extra bucks for the brand I already have? Or does it make no difference as long as I have a thermostat? Help!