- Joined
- Nov 12, 2019
- Messages
- 74
- Reaction score
- 106
I have what looks like black growths on some of the rocks in my tank.. they are hard and grow on the corals as well.. is this something to worry about? Any idea what could cause it or how to get rid of it.. all levels are spot on.. nothing funky going on Atm.. you can’t see them at the bottom of the coral there’s 4 on it.. they appear more red colored when blue leds are off.. I just had to cancel my aquarium service.. on my own for a bit so any help would be greatly appreciated!