How many snails do I need?

[saltyjewell]

I have 170g tank with live rock(and fish*lol*). I have 5 large Mexican Turbo snails. The tank seems to be a bit much for them to keep clean. I plan to add more invertebrtrates but not sure how much or what is a good clean up crew.
What would you recommened?

 

[saltyjewell]

bump

 

[meowzer]

The rule of thumb is a snail per gallon....IDK how old the tank is, but maybe get a few dozen nassarius, cerith, maybe 1-3 fighting conch....

 

[sanchoy]

Snails are usually set free to battle algae. With 170 gallon, I would put at least 25-30 snails. But remember, snails multiple fast and breed quite well.
A good clean up crew should consist of hermits and crabs (depending on your fish / should not be vert killers).