I have 75 gallon exclusively devoted now to SPS containing over 50 great frags. The tank did not start out that way(mostly softies) and does not have an overflow or sump. To date, all is well, the corals are growing and I am dosing with two part, aminos and Potassium. I use a HOB skimmer which works fabulous, have two Korialia 4's for flow and use a Fluval 4 for other filtration and movement and of course a load of live rock. My question is this.... What would one recomend to pack in the Fluval. I have been using only some floss and loads of carbon and change it once a month>. I was thinking of adding some GFO but believe it should not be combined with Carbon in the same unit. With the tank now expanding to all SPS, I was just curious what, if anything more, I should be adding. Suggestions/ alternatives welcome.
Thanks,
Thanks,