I don't want to overdue it on my tank, it's freshly cycled and I'm getting a diatom bloom. I'm afraid to add too many snails and crabs just to have them die off with such a new tank. Today I added 3 trochus, 3 nassarius, 5 blue leg hermits, and a candy cane shrimp. What does everyone suggest? More?
You are correct, add slowly. Diatoms will pass. youll want turbos once you see green algaes.
Here's a good guide to what eats what as far as snails go. https://www.reef2reef.com/threads/choosing-cleanup-crew-critters.258695/
IMO you may have a few too many crabs depending on what your feeding.