this is called CyanoBacteriahow can I get rid of this pretty thick green algae which is on this moss and some on the plant next to it. (15 gal fluval that has cycled but no livestock in it yet)
To avoid spending a fortune on test kits (not the ammonia kit you have now), attack.
Lights off. Towel over the tank, total darkness for 3 days, then peek. If not 100% non visible, up to a week. Your plants will survive.
It isn't algae, but a bacteria that needs light.
you said the other plants will survive that? I ll try your suggestion. Thank you