White stuff on rocks? Either bacterial or detritus?

[AydenLincoln]

There’s this white fuzzy stuff all over my rocks. Can someone ID it? I think either bacterial or detritus? It’s gotten worse but it’s not horrible. Perhaps white algae?

 

[KrisReef]

I think that is the bacteria feasting on the abundant nutrients in your coral predator tank. Blast it with a powerhead if it bothers you to look at?