Brown hair algae

[Cencalfishguy56]

So I started with dry rock to keep this sort of shit from happening, and I have a strong guess it was on one of my hermit crabs shells, I dipped all the coral plugs in peroxide so that couldn't have happened, also used reef cleaner rock so very doubtful that's the cause as well, I fed a shrimp to my BTA and got a little greedy giving a piece to my cleaner shrimp and the next day it was all over the rock! It's not any worse but definitely ugly, gonna do some water changes and try to get most out but any successful tips on how to eradicate it completely? Thinking of picking up a lawnmower blenny at my LFS then taking him back after

[Matteo]

CUC and water changes. do you have fish in your setup?