Baby Steps

[TheReefGeek]

Why a trickle filter?

I would use a single overflow with two 1.5" durso standpipe drains and one 1" return. Then just pump 800g/hr or so through the sump/return pump. This way you have a backup drain in case one fails. This would free up space of not have two overflows as well. Then drill the tank for a closed loop, and use a big ass pump of your choice for your main flow. Dont try to do too much flow through your sump/overflows, you will get excess noise and microbubbles.

If it is behind a wall, might want to look into a return manifold, I am happy with mine, I run 7, 1/2" nozzles off a 4500gph pump, gives me all the flow I need, and with loc-line I can adjust the flow easily to adapt to coral growth or new corals.