Thick White Alage

[kaspm]

Can anyone tell me what this is and how to get rid of it? It’s think white looking cotton balls.
https://uploads.tapatalk-cdn.com/20181127/ecd60adbf903523874733bffc7066159.jpg


Sent from my iPhone using Tapatalk

[BeachVacationer]

Have you tried snails, like Astraea snails?

[kaspm]

I have a couple but they don’t seem to do anything for it


Sent from my iPhone using Tapatalk