red hair algae on one rock

After manually removing it, make sure your nutrients aren't elevated or it will grow right back. Do you use RO/DI water? Do you have a lot of wasted food fall to the sand bed?

 

Red Hair Algae is not an ID but rather a description. You have GHA, red is a completely different type of algae as far as I know.

Perhaps contact Reefcleaners.org and see if they have suggestions as to what eats it and the correct ID.

Nuisance Algae ID Guide

There is also an ID section.

Good luck and let us know how it turns out.

 

i use ro water but not di. I dont think i have a lot of food fall the the floor. and i have a lot of snails and crabs from reefcleaners but nothing seems to want to eat this algae.
thanks for the help

 

That particular invader is not impacted by nutrients, high or extremely low. Peroxide will kill it in five days

Google 'pico reef pest algae problem challenge' read page one for a few pages

Run treatment, the post back pics in a week it will all be dead. Read all 29 pages if you want your tank permanently algae free

B

 

Remove his nutrients and it will die. Just as removing a man's meals will cause him to die (as will a submerged bath in H2O2).

Algae can't grow from light alone.

 

Try to manage that with nutrient stripping alone, and post update pics each month. Like most of the recent algae threads, I bet we stop getting update pics pretty quick and the thread slowly sinks

This algae can't be managed by nutrient control, but try by all means...post an updated pics so far let's see where we are at