taximan
New Member
I need some advise on filter systems. I have a 75 Gallon tank with 2 emperor Hang on Filters. It is Crystal Clear and have know problems with my levels. I want to change it over into a Reef Tank and i been told by one local petshop that its ok with the hang on then the other pet store tells me i need a wet dry filter. Whats the Diffrence? Doesnt Wet Dry filter system Nitrates get out of control?