Brandon....what about when you do not have any algae problems but you still have phosphate problems....If you are not testing for it at least occasionally, you could end up with far worse problems than a little algae in the tank. I've got problems going on with my 55g right now. Ammonia, nitrite running about 0.5ppm, and nitrates are running 160+ppm, while posphates are probably sitting around 2ppm. By all accounts this tank should be dead and look horrible. No nuisance algae at all...well, a tad green on the back glass, but taht's been there for the last two years even when the tank was optimal. (not saying this will happen to you, just that you never now unless you test, waiting for algae to pop up isn't neccessarily going to let you know there are phsophates in the water or not.)