cant control nitrates while removing HA

[whatcaneyedo]

Your turbo snails are eating the hair algae? Thats interesting to know, I thought they only ate turf algae. But now that you mention it I did have a turbo snail for several years and no bryopsis problem until recently after its death. Tuxedo Urchins also work well for me but I cant keep them in my display tanks because they always go up to the overflow and get their insides sucked out.

Presently both my phosphate and nitrate levels are nearly undetectable but I still have an issue with bryopsis. However I find if I remove it from a spot (with a butane torch) it doesnt grow back. ATM my coral growth is actually out-competing it for space so with a little manual removal I seem to be winning the race.