Well i'm new to the site and to the saltwater/reef tank world. Doing a lot of reading my 195gl tank will be here on fri and i cant wait. it's going in the wall of my master bedroom and we sill need to build the stand in the wall for it to. I put in my tank info in the reef tank wizard this what came up. the number of the crabs and snails cant be right can it?

Yes the general rule is one crab per gallon, but I am not sure about the snails.