Ive been trying to fight this algea on my rocks in my 20g long but nothing seems to eat it. I have 1 peppermint shrimp, 1 trochus snail, 2 nass snails, a purple pin urchin and 4 blue leg hermits. I also have a 5g tank with emerald crabs but im scared they might go after my LPS in the 20g... As of now ive just been pulling it off with tweezers and removing from the tank manually.Please let me know if you guys know any good CUC members i should add. Btw propbably giving my urchin to LFS later today because he constantly redecordates my tank by moving frags lol.