Large Sump. What to put in it?

[Ryanerickson]

Siporax ceramic rings apparently great for achieving low nutrients

[toytech]

Frag section , you always have extra frags .

[ponokareefer]

Originally Posted by Ryanerickson

Siporax ceramic rings apparently great for achieving low nutrients

They don't get plugged up like bio balls?

[Ryanerickson]

Not if you stack them in a egg crate box (homemade)

[shiftline]

I planned to have a frag section but now my space is taken up with a huge skimmer. Live rock and a CA reactor