I think perhaps the only problem with a shorter/wider denitrator is that the water wouldn't have as much contact with the bio balls, which is where the real denitrifying occurs (if I'm understanding it correctly).

Ok, how about same hight but wider?

I would think that would be perfectly fine.

Hey all,

I just stumbled across this and was wondering if anyone has one of these running directly out of and back into a tank (as opposed to a sump)? If so, is a pump required? Thanks in advance.

Luke

Yes a pump is required. I had a MJ1200 running mine, but tried smaller and cheaper powerheads, currently, its being powered by a 5$ powerhead. I dont know the brand, but it came with ViaAqua NANO setup i bought.

any powerhead will work, and the chamber could take upto 30 mins to fill, due to such a small pathway, and the headpressure created by it.