So I picked up my new tank setup from a RC member and I have some questions....it's been drilled for a closed loop setup but I'm not sure to go with that or not...I'm hesitant because of the extra heat from more powerheads. Can I close the extra holes somehow or how would I even plumb this for closed loop ? I know the larger bulkhead is the overflow and the other top one is the return. What about the others ? Opinions ??
Thanks !!
Thanks !!



