Will this sump work?

[Andrew1002]

Be careful not to make them too tall, otherwise you risk the sump not being able to accommodate the backsiphoned water when you turn your pumps off. This is one of the reasons I like to run as large a sump as possible; it gives you a greater margin for error.

I can't make them taller. The stand allows to fit it perfectly

I'M ANDREW AND I'M A FISHAHOLIC
-Andrew

 

[Andrew1002]

1) I would make the refugium walls taller. There is no reason to give up the volume by making the refugium walls short.

2) I would either cut slots into the top of the partition between the refugium and the pump compartment or put some egg crate on top of the partition to keep any floating plant matter in the refugium.

3) I wouldn't run bio balls submerged... it is a waste. Use ceramic media if it is going to be submerged.

4) I would buy a ruler....

The original plan was to have the bio balls not fully submerged. But, I was told they need to be fully submerged. If not ill put them above water

I'M ANDREW AND I'M A FISHAHOLIC
-Andrew

 

[Oughtsix]

Matrix, ceramic media or sintered glass media all work very well submerged. Bio Balls don't have a lot of surface area in comparison to these other media.

What bio balls are excellent at is breaking streams of water down to drops of water creating a huge air/water surface area. When submerged bioballs are a pretty hohumm bio media.