Closed Loop w/o Drilling

[Reefland]

I am going to attempt a closed loop again on our 75 without having the tank drilled. This time I am thinking of running an external pump (maybe a Gen-X Mak 4) which will sit on the ground with both inlet and outlet ran over the back of the tank. For the inlet to the pump, I would put a cap on top of the plumbing so the pump could be primed.

Anyone doing something similar? Will this work?

[Rp Marine]

maybe this could help
Melevsreef.com - Closed Loop

[spankerbob]

You could also prime it by taking a second power head and forcing water though your inlet of the closed loop that is in the tank, I do that with my non drilled closed loop.

[The R/C Man]

Hey Scott!

I am also going to add a closed loop onto my 25 gallon. I need to get rid of 4 power heads, which require maintanence. I have also heard that the hum of the motors in the water can stress the inhabitants and there is always the possibilty of stray voltage....

[Reefland]

What are your plans for adding one Greg?

[The R/C Man]

Not anything on paper. Just an idea in my head. It will probably just be a "U" tube that requires a siphon to start, down to say a mag5 and back up to a squid with a couple well angled lock lines. Nothing fancy. My corals are large enough now that they are impeading the flow. I have also considered using a Sea Swirl for the return.