The 75gal reef tank cycle has started!!!!!!!

Well I have to say it really is cool to see some critters in the tank. One of the SS has started to move around a bit. The other one is still just sitting in the corner. I hope they like the tank. They are so small they make me worry there gonna get squished or some thing.the star wont come out but that might be because some big Creator is shining a light on it every once and a while. LOL I can't help it. One of the snails fell off the glass and was stuck upside down and I had to help it. Now if a hermit crab comes by when we are not here they might eat them when there stuck right?
 
Ok well I just got up and turned on the lights in the 75gal and 3 out of the 4 snails have not moved all night. They are out and moving there feet but not moving around at all. The other one I can not find. Is this normal? Everything else we put in there seem to be fine. What could be wrong?
 
I can't remember how to spell it Cerith I think.
 
they are sand sifting snails.
 
cerith is the right name. are they facing backward? cause most of them wont move until they face the sand for 3to5 days. they are really slow snails. out of my 20 cerith snails i only have one snail that is really active
 
Well there all just sitting there. There not upside down. They were going up the glass and stuff last night. then they just fell off and I had to put them right side up and now they don't seem to be going anywhere.
 
I already had to stop one of of the hermit crabs from picking on one of them.
 
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