Types of Algae to expect in new aquarium

[Michael]

Perhaps one of the more experienced reefers can explain what algae to expect in an algae bloom. I've read here that a new aqarium will go through an algae bloom (maybe after 4 months)and then the problem will correct itself (assuming all water parameters are correct).
--How long will this normal bloom last for?
--What algae should one expect to get...hair ?, bubble?, slim? all of them?
--how long does the cycle last for before you should do something?

www.garf.org suggests buying the snails/reef critters to handle the problem.

Thanks for the feedback.

Michael