First Fish

Well after one long month my tank finally has fish in it! I have a list of
desired fish, but the only ones they had at my lfs were the clown fish. I
didn't want to overload the tank so I bought 2 clowns to start with. I also
bought three (I think acorn) snails to help clean up.

My tank is the 46 gallon bowed front with 45 lbs of LR. My ammonia is 0
nitrites 0 ph 8.2 ~ 8.3 nitrates 10. I notice a lot of brown 'gunky'
looking crud that is floating on top of the LR. I thought this is die off
and at one time did clean it up a bit using a toothbrush (delicately
brushing them). I also rinsed the 'cured' LR when I first got it.

My question is this, how can I clean this up? Will the snails do a good
job? I doubt they will and would like to know of any other cleaners I could
use. I did notice I have some nice new coral growing off my LR (I also plan
on buying some anemones when my tank is established), so I know I should
stay away from crabs.

Thank you all
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