hey guys i finally got my sump for my tank its a 55 gallon sump , on a 150 gallon tank, the refrigium has 20lbs of live sand and 15 lbs of live rock. it has 3 cylinders inside that have Activated carbon,denitrate,and phosguard. i also have my 125 coralife skimmer, and a 15 watt and 8 watt uv
sterlizers in it. i have two overflow boxes in the tank and two returns too the tank. it has crates inside the sump but im not sure how to put the bio balls in without them floating all around the sump so I dont have any in the sump. I have filter pads right underneath the spouts that bring water into the tank. also 165 lbs of live rock in the tank.
So my question is do I need to run my rena xp 4 canister filter? as of right now I have the canister filter still hooked up. I'll keep it hooked up if i should but its kinda of a pain to maintence and it blows micro bubbles in every 5 mins or so., also are the bioballs a must for the sump and if so any suggestions for how to set them up.