What is the best way to lower phosphate and nitrate level?

[reefwars]

Originally Posted by Oilers

I have reduced the hour of lighting down to 8 and also threw in some carbon. For the GFO reactor, can it be used without a sump?

it can be ran both hob or in sump heres a pic



basically a input from a small pump like a maxijet and output with ballvalve