I've had this and it can quickly grow out of hand and will cover and kill your corals. In my case, it seemed to prefer spreading over Zoas and killing large colonies. YOu can get a small wire brush and really scrub it of, but it becomes a constant war to keep it in check. If possible I'd remove the rock it's on.Hi,
My tank is getting a lot of black algae/black sponge? Not really sure what that is. Anyone know how to get rid of it?
Here's a picture . It's covering all the coraline algae and i hated it
my phosphate jumped up from 0.11 to 0.27 last 2 weeks, just did a water change,So I have yet to get a consensus on what it was. What I was pretty sure of is it wasn't black algae (has hairs), Black Coraline (was somewhat bulbous,) or black diatoms to hard to get off.)
If you can't remove the rock, then I'd explore what's causing the growth. My guess is you have an excess of nutrients in the tank and if you can master that it will recede over time. Check phosphates, nitrates, and nitrites while you're at it. Remember though that these may test zero if they're all being used up and it can still be a nutrient issue.
Are you over feeding? Are you using any additives, coral food, etc?
Sounds like a plan. More frequent water changes for a while. Change filter socks every day or so if you use them. Keep getting off as much as you can with the wire brush.my phosphate jumped up from 0.11 to 0.27 last 2 weeks, just did a water change,
maybe I'll try to change phosguard more often(every 7 day to every 4 day) to keep it in check
Let me also tried dosing microbacter 7 and clean for 2 weeks to see if it helps
That's a sponge and different than what he has.