Detritus in sump

[mr.wilson]

I put big non-reef safe inverts like chocolate chip stars, general stars, green Philippine (fish eating) serpent stars, urchins, big hermits, and crabs in the sump. They are voracious feeders and will eat detritus if that's all that is available.

Alternatively, a diatom filter will polish the water in the sump. Turn off the sump return pump and stir it up for the diatom to pull it out.