Need some help identifying these. Here they are under a microscope. In the tank they resemble a snotty and stringy but don’t have any bubbles like dinos sometimes do and they’re smothering corals.
I’ve put the tank on a 3 days black out and dosed nitrate and phosphate after I done a hefty water change last week.

I’ve put the tank on a 3 days black out and dosed nitrate and phosphate after I done a hefty water change last week.
