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Closed loop still viable?

JoshH

Tank Status: Wet...ish, growing things....
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I just ordered a tank and I really considered doing a closed loop. The tank isn’t big at all, just a slightly stretched 60 cube-but I like the clean lines of not having a powerhead in the tank. This thread is making me want to call and add a couple more holes to the back wall!
If you do, plan for Schedule 80 bulkheads. I used regular 40s on mine and I wish I had have went with the 80s even with there extra cost.
 

Smite

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Is anyone using a vectra m1 for closed loop? It has a 1" return and 1.25" intake. Do I need to maintain these sizes or can I drop the intake to 1" and reduce the return to 3/4" bulkheads since there will be two per loop. I'd keep the return pipes 1" until the bulkheads themselves. I know these pumps don't like water restrictions but I'd like to keep the hole sizes smaller to keep the false wall/drain section smaller.

I want to run two seperate CLs each with a vectra m1, unless someone has another dc controllable/rampable pump they'd suggest?

Thanks
 

BackToTheReef

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I have a closed loop on my 450 and it works fine. As you exceed 1” thick walls, power head options become somewhat limited. I do use MP60s as well as the closed loop. Ramping return pumps like the vectra have largely negated the need for things like flow diverters. I’m not a big fan of punching a bunch of holes in my tanks, so there’s that to consider. In the attached picture, closed loop are the three tubes outside the overflow.

CDA02164-18AE-4DE2-AE7E-BBF9B8A14E9A.png
Do you happen to have a pic of what the front looks like during the build? Curious as to what your intakes and outlets look like.
 

mfinn

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Is anyone using a vectra m1 for closed loop? It has a 1" return and 1.25" intake. Do I need to maintain these sizes or can I drop the intake to 1" and reduce the return to 3/4" bulkheads since there will be two per loop. I'd keep the return pipes 1" until the bulkheads themselves. I know these pumps don't like water restrictions but I'd like to keep the hole sizes smaller to keep the false wall/drain section smaller.

I want to run two seperate CLs each with a vectra m1, unless someone has another dc controllable/rampable pump they'd suggest?

Thanks
Everything I've ever read about the suction side of a pump is that you don't want to restrict it. I would stay with the same size as the pump.
 

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