Aadler
New member
i love the koralia's i have 3 of them, but im not sure you need number 4's I might go with #3's. Most coral do not like the direct flow you get from powerheads, hence why the koralia is such a nice pump as it disperses the water well. I have found soft corals incredibly easy to keep, with very minimal flow, but then again i dont feed that tank so there is little to no detritus around. but you wont regret the koralia purchase.