cycle finished. going to buy critters tomorrow, got some questions

[blk_g20]

tomorrow i'm going to buy my first critters. i've got snails and crabs in mind. my tank is a 20H. i was planning to get 5 astrea and 5 nassarius (sp), a few blue leggs, and a few scarlets and maybe a sally light foot. can i also add peppermints and cleaner shrimps at this time? how about the sally and an emerald crab at the same time? would critters overload the bio-filtration like it would when adding too much fish at one time? any suggestions or comments about my list of critters? thanks much in advance.

[Mnesarchus]

Get at least 20 snails and 20 hermits - better to have too many IMO.

[blk_g20]

if i get too many, won't they just starve after they clean up the algea left from the cycle?

[cmoreash]

try to get as few crabs as possible, all they are good for is hair algae IME.

 

For snails, it just depends. I slowly added snails/crabs until they were keeping up with the algae.