Closed loop questions?

[Scuba Steve]

I'm going to be ordering. So i need to know how many holes bulkheads they need to put in the tank to have really good flow? To make really good closed loop system. Tank will Probability be 72"x36"x20"tall! Is this considered as a shallow reef? Or does it need to be under 20"tall to be a shallow reef?
How many holes bulkheads do you put in bottom of the tank?
How many holes bulkheads do you put in the back of the tank or if any at all?
How many pumps would I need to run this closed loop and what kind gph?
Any ideas would help out a bunch! I know a lot of people on this forum have closed loop systems!

 

[pwhitby]

I put all holes in the back of the tank, just in case there is a leak it prevents totally draining. I would also get the biggest pump you can- maybe a hammerhead. Pressure rated are better, if you use penductors. You need at least two holes for the pump feed. The outlets are entirely up to you. As many as you want really.

Good luck.

P.

 

[Scuba Steve]

Thanks Paul for the info and the heads up on the pump.

 

[Lightsluvr]

Steve - you're welcome to come by and look at mine again - mine was pretty much designed by Happysak - I used his manifold design for the pump feed, and use five penductors in the tank bottom. As Paul suggested, the Hammerhead is a good choice.

LL

 

[Scuba Steve]

Would love to come back over and take a look. Thanks guys for all the info!