Closed Loop & drilling holes

Burblecut · 01/10/2011, 10:24 AM

I have a oceanic 72g bowfront aquarium. I believe the overflow holes are 3/4" and 1".

I am planning to keep SPS, so I want lots of flow for this system, so I figure I should drill 3 holes in the bottom of the tank and install a closed loop for flow.

What do you recommend the size of the holes should be? Is 3 holes good enough? Should the holes be placed in a specific spot?

What pump would you recommend for flow?

Thanks for your time

chimmike · 01/10/2011, 02:21 PM

TBH, you're better off buying a couple powerheads. They'll use less power and allow more variable flow, plus you won't have to drill any holes.

jeff@zina.com · 01/10/2011, 02:26 PM

Quote:

Originally Posted by chimmike

TBH, you're better off buying a couple powerheads.

Plus you don't shatter your tempered glass...

Jeff

Toomnymods · 01/10/2011, 03:24 PM

IMO for a closed loop you should drill the back pane of glass.. for my closed loop setup I have the intake for the closed loop maybe 6- 8" from the top.. the two exhaust ports are further down maybe 5-6" above the sand and I have these setup as a 1" return.. for my tank I'm using a ampmaster 3000 for closed loop and a mag 12 to run the sump, and all other accessories.

01/10/2011, 10:24 AM	#1
Burblecut Registered Member Join Date: May 2010 Location: Morinville, Canada Posts: 5	Closed Loop & drilling holes I have a oceanic 72g bowfront aquarium. I believe the overflow holes are 3/4" and 1". I am planning to keep SPS, so I want lots of flow for this system, so I figure I should drill 3 holes in the bottom of the tank and install a closed loop for flow. What do you recommend the size of the holes should be? Is 3 holes good enough? Should the holes be placed in a specific spot? What pump would you recommend for flow? Thanks for your time

01/10/2011, 02:21 PM	#2
chimmike oxygen abuser Join Date: Mar 2008 Location: Parrish, FL Posts: 5,089 Blog Entries: 2	TBH, you're better off buying a couple powerheads. They'll use less power and allow more variable flow, plus you won't have to drill any holes. __________________ -Mike Tankless wonder Geaux Noles!

01/10/2011, 03:24 PM	#4
Toomnymods Registered Member Join Date: Jun 2002 Location: Grand Prairie, Tx. Posts: 640	IMO for a closed loop you should drill the back pane of glass.. for my closed loop setup I have the intake for the closed loop maybe 6- 8" from the top.. the two exhaust ports are further down maybe 5-6" above the sand and I have these setup as a 1" return.. for my tank I'm using a ampmaster 3000 for closed loop and a mag 12 to run the sump, and all other accessories. __________________ 220 gallon Planet Aquarium RR tank, 40gal Trigger Systems sump, Geisemann Infinity 72" Current Tank Info: 90 gallon SPS reef W/ 30 gal sump / refuge :P

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