After just setting up my tank I had some brown diatome algae growing on a Anubias Bonzai that I was, unsuccessfully, cleaning manually. After about a week I added Neocaridina heteropoda "wild". Cherry shrimp were originally bred from these, that said, I'm not sure if Cherries will eat the same variety or amount of food as I have never kept Cherries. They constantly clean up all the brown algae on the plants and most of the fungi that was growing on my spider wood. Personally I think that Neocaridina heteropoda "wild" look really cool full grown, when they get that greenish tint to them. They are completely clear as juveniles, but completely worth the wait IMO. As said earlier by fluttermoth, they wont clean your tank for you, you still need to put in the maintenance. Nonetheless they can help keep plants tidy by eating algae and dead plant matter.