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I want to make one of these things for a twenty gallon nano. I don't have a sump, and I don't want the thing lower than the tank due to the chance of leaks and my whole tank draining. So..... can i make an internal one?
If I tee it off from a powerhead and use model aircraft tubing (got lots of it - I fly too) how much length would I need? It's pretty tiny diameter so maybe 30 feet would do it? And then I could have the top of the pvc tube sticking out of the top of the water and it would slowly dribble out over the sides. I thought about using an airlift but I reckon it wouldn't have enough pull to even get a couple of drips going through the thing. I would only need maybe 3gph to reduce nitrates right down.
Is it possible to do something like this?
Sam
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