Right now I have it setup as this. In chamber one, heater, in chamber 2, Intank filter rack with filter floss, purigen, and carbon (in that order top to bottom) and the intank refugium next to it (don’t have algae for it yet) and nothing in the third chamber. Should I add some sort of biological filtration in the third chamber? Or anything else? And if I should add bio media, what kind is best?