what can this be?

[rickster]

Not sure what this white-ish growth on the my rocks, and how can I eliminate it?
My levels seem ok:
DKH 8.23
Ca 443
Phosphate .03
Mag 1410
I tried with a little brush scrubbing the rock a little bit, but not getting it all.
Any thoughts?
Thanks,
Rick

 

[KJ]

Bryozoan https://www.google.com/search?q=bry...ved=0ahUKEwja08nC4uHNAhVJ2GMKHbVhDoAQ_AUIBigB

 

[SandJ]

Looks like what Paul B describes as mulm to me...

https://www.reef2reef.com/threads/mulm-in-a-reef-tank.252780/

Sure it probably has a name specific name lol
My rocks are covered with it.

Edit: looks like KJ has the specific name

 

[brandon429]

And, it's the periphyton that Santa Monica had based the entire ats philosophy on

This is a community of reef organisms agreed bryo nice call. I personally will force it out of any tank I keep, others like it

It requires nothing other than basic import to find what it needs on a reef. It's removal isn't chem based it's all manual work and a touch of UV after the cleanup if one is being thorough

 

[Paul B]

It's great stuff, you should be proud.

 

[saltyfilmfolks]

I wish I could grow those that well.


Ps , I'd get those NPS in a higher flow to stimulate the feeding response. You've def got the right food in there.

 

[rickster]

Yeah, those NPS open up every night and sometimes in the day as well. thanks