Cycling

[Ryan]

Okay so as some of you know i am setting up a ten gallon. I have decided to go fish less but have 1 cleaner shrimp in the tank just for looks. Along with the cleaner shrimp will be assorted snails hermit crab you know you everyday run of the mill clean up crew. All these will be added after my LR and after i have run off a few frags.So here is my question:
Do i still need to go through the whole cycle thing even though i have no fish or other inverts, do i still need to go through a cycle. I know i will have a amonia spike when i add the LR but do i need to add mollies to get the cycle going and what not or will the LR do this for me. All LR will be purchased cured.
Question 2:
" How long do you think it will take for my tank to cure? A rough estimate will be fine.