So i had some type of algea start in my sandbed, it's a brown/dark red color and when you mix it up in the sand it clunks up and has hair like pieces in it and it doesn't go away at night. I used to have tons of copepods, you could shine a light at night and they were running everywhere. Well they've disappeared when the algea started. I have a mandarin so im having to add pods to the tank (one bottle a week for past 3 weeks) The lfs told me to dose phyto so i bought reef nutritions phyto-feast, is this the right kind of phyto? All of my cuc has died off except 1 turbo snail and 1 hermit crab, most likely old age cause they were purchased with the tank setting up 4 years ago. Lfs said a cuc and dosing phyto and adding pods should help my algea issue. I've tried water changes, 3 day black outs and chemiclean. None has helped.