Nano-Cube project design...input please

!wrass!

Premium Member
This may be a stretch but I thought I would ask if anyone on here had an opinion, err, suggestion? I am pulling the divider out of my 24G Nano-Cube and drilling the back for an external Dursa overflow arrangement. The overflow will be housed inside a surface skimmer made from 6 inch PVC pipe cut in half and siliconed to the back glass.

I need a return pump for this project. The pump will have a little less than 4 ft of head and through a SCWD back to inlets on either side of the display. I don't really want any other pumps inside the display so all flow must come from this pump. A closed loop is an option if the overflow can't handle enough flow. I will have to make this decision before the tank is put into service. I will not have the luxury of putting the tank up and pulling it down several times.

This brings me to the questions. What GPH will be adequate for a 24G? Keep in mind that this will be an LPS/Softie tank. I have always used power heads to supplement flow so anyone with help here? With 10x turnover, I would be getting close to 250 GPH, 300 GPH would put me at the max flow for 3/4 inch pipe, I think. I can go to 1 inch but it will be getting tight in the overflow box.

To get 300 GPH, if that is the number, into the tank I must calculate head. How much head loss is added by the SCWD?

Is there anything else that I need to do to the tank? Am I missing anything?
 
why do all that work when lps and softies will do just fine in the standard nano-cube?

probably less than a 1000 gph pump since the sqwd's seem to malfunction when you use bigger pumps.
 
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