Hate to say but its sounding like Dino’s. At least thats all ive seen grow over and kill otherwise healthy coral.
I was brand new when I battled it and assumed it was cyano. Now id say it was most likely due to bottoming out Nitrates/Phosphate I went with a 3 day black out and dosed stump remover to get my Nitrates up and it cleared. Water changes only made it worse.
I was brand new when I battled it and assumed it was cyano. Now id say it was most likely due to bottoming out Nitrates/Phosphate I went with a 3 day black out and dosed stump remover to get my Nitrates up and it cleared. Water changes only made it worse.