Can someone tell me about media....i bought floss..phosgard..chemipure blue...and purigen...im taking the foam out..carbon..and bioballs that came with the fluval evo..and replacing it with the above..is that correct. I do all 3 things at the same time. To reduce algae..and hopefully more healthier for the corals...do i run the skimmer with it? Or wait. Any info would be helpful. Its all coming tomorrow