Cleanup crew help

[mrhasan]

I got two torchus snails in my 20 gallon and they do GREAT job at keeping rock works clean. I had hermits in the tank too but their movement disturbed the zoas so they are out (maybe two or three are still there in the tank).

My only problem is with the tank walls which get the brown filmy algae in like 3/4 days. Not any severe outbreaks but still irritating to see patches. So I was wondering what should I do to keep those wall hugger at bay. Till now, I have come up with a list:

5 cerith snails
5 nerith snails
2 nassarius snails

Will this work?