Procerum “spelling” I believe.. I had the same ones and they suck! Low blue light only, h202 dose at night 1ml per 10 gallons of water.. uv will help but you gotta stir them up and get them in the water column for it to help.. and dose silicate “sponge power” etc to get a diatom bloom and help compete.. good luck…
Any opinions on what type of algae this is growing on my rocks and sand bed?
www.reef2reef.com
if you truly read that, truly study it, you'll see a fix for any invasion in nano reefing and no invasion can beat that mode we show across 7 tanks. ID doesn't factor, params don't factor, none of it
large tanks have to go thru all that, nanos get an opt out pass due to smaller size and easier deep access.
you have a way to clean the tank in a manner that will fix it.