plumbing frag tank into basement sump

[stephanjupillat]

Hey guys. I'm building a basement sump for new 225 gallon tank. I'm adding a frag tank shortly and need help on how to plumb it into the sump. The frag tank stand is to the right in the picture so it's really close.

1. I was thinking the best way was to either add a T with valve right after the return pump in the right chamber. However, I could plumb it after the UV sterilizer but figured the frags probably want all that bacterial alive to eat it. Just making sure which one would be better

2. And should I be using the main return pump anyway? All that water would be very clean after the skimmer and bio reactor. Is it better to get a small pump in the left chamber where the water enters the sump so the frag tank gets the water after the mechanical filtration? I'll have an auto fleece roller in there when I can afford it.

Thanks!

 

[stephanjupillat]

heres a better pic. just realized theres no check valve after manifold, so if return stops, all the water will flow out the manifold reactors