Just picked up a 110 (thanks Jenn) with two overflows, one in each corner. Thinking about making it into a peninsula tank and taking out one of the overflows and just using one. Can I do this? I know it will cut the flow in half. Tank will be FOWLR for awhile but will eventually move into an everything tank. Will this be okay or should I leave both overflows in? thanks for your advice.
Do you need two overflows?????
- Thread starter holabird
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I can't say you specifically NEED two overflows but its really about redundancy. If a snail or something gets caught in one then you have one that is still going. That being said there are precautions you can take when only running one overflow to reduce the risk of having a problem.
As far as flow one overflow should be fine. Some people only run 3-5 time flow through there sump. you will be fine running around 330- 550 gph through one one inch overflow
As far as flow one overflow should be fine. Some people only run 3-5 time flow through there sump. you will be fine running around 330- 550 gph through one one inch overflow
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If you're drains are 1", you should be fine. I have two 1" drains on my tank with an 800 gph (head calculated) return. I get a trickle from both, but one could handle it fine!
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i agree with the above posts... i think you're going to hurt your surface skimming. One of the things i actually dont like about my acrylic built on external overflow is that it is kind of small.
Next time I'll have a coast to coast built on.
B
Next time I'll have a coast to coast built on.
B
You could remove an overflow box and use the 2 holes for returns. Use the overflow box left on as a dual intake. You would accomplish flow from the clean end without a powerhead or loop that way. The open area of glass at the overflow end would be an easy spot to mount whatever powerheads ya need
