Oh okay, thanks! I heard they ate lagae but not to what extent. I'll probably just get a couple more Nerite's
It's green algae, I try to only leave the lights on for 9 hours a day, but I do have the blue light on during the night and times the white one isn't on..I would try to figure out what's causing your algae so you can prevent it, rather than adding snails and shrimp as a band aid.
What kind of algae is it? How long do you leave your lights on?