Does anyone have any suggestions on a recommended cleanup crew size for a 120 gallong aquarium that I just started about a month ago. I've got algae that is starting to take over. I went out last week, and bought 4 astraea snails, 3 emerald crabs, 3 peppermint shrimp, and 1 lime green star fish. Wasn't sure how many more I would eventually need. I wouldn't mind having more, but I don't want to overdo it. Taking suggestions. . .