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GHA, green hair algae, is green unless totally covered with some other alga. If this photo was taken under white light, this is probably not GHA. The filaments or hair of this organism seem to be very thin, which leads me to think this growth is a cyanobacteria or cyanobacteria infested hair algae, rather than just an alga.
if i turn on white light, that algae colour is greenGHA, green hair algae, is green unless totally covered with some other alga. If this photo was taken under white light, this is probably not GHA. The filaments or hair of this organism seem to be very thin, which leads me to think this growth is a cyanobacteria or cyanobacteria infested hair algae, rather than just an alga.
Can you view this stuff under a microscope?
Yes, im already put off my scaping rock and brush manualy without h2o2Looks like dead GHA or could be lyngbya.
Seeing no coral on this rock, I would place it in a container of tank water and pull off as much as you can by hand and scrub the rest with a firm toothbrush and some 3% hydrogen peroxide.
Return to tank, reduce white light intensity and number of hours of white lighting and add some snails such as :
Astrea
cerith
turbo grazer
trochus
A Pencil urchin
8-10 Caribbean blue leg hermits
Are you using RODI water or tap water from the faucet ?
What is your phosphate level?
Is tank at or near a window?
Dead ghaYes, im already put off my scaping rock and brush manualy without h2o2
After 24 hours, that algae still return
Im use rodi water, my tank isnt near from windows
But i not check yet my po4 level, maybe next week im buying test kit
From my information above, do you think its gha or lyngbya bro ?