What has infested my sump?

[cdnco2004]

I have been noticing these guys in my sump and they have been reproducing in extreme numbers in the last month. I assume they are some sort of critter who cleans. They are only in one compartment in my sump with my skimmer. They have not spread to the other chambers or the DT.

 

[Kfactor]

Looks like sponges

 

[MoshJosh]

Pineapple sponges

 

[cdnco2004]

Safe to leave in sump I assume?

 

[gbroadbridge]

Safe to leave in sump I assume?

Don't stress if you kill some keeping gear clean, but I wouldn't go out of my way to clean them up.

They help keep silicate levels under control - you may have highish silica in your water.

 

[cdnco2004]

Will have to run a new ICP on my RO/DI. Did not have much at all in my last ICP. It looks like I need to clean them off my skimmer but otherwise I figure they are just cleaning the water. I'm reading angels love them and I have a Coral beauty in this DT so hopefully if they spread out of sump, she will get a nice snack.