Are they pretty new into the tank? If so, what was the acclimation procedure. I have found in the past when I added snails that if I just floated the bag and did a little water in the bag trick they ened up dead quickly, now I drip acclimate for 1+ hours and I have not had a single snail loss.

Yes, it is very important to properly acclimate inverts for a good hour + like Greg said.

do you mean his salinity is 1.032? cause if so thats pretty frickin high! nsw is somewhere between 1.025 and 1.026.

what are his actual paramaters, nitrate, nitrite and ammonia. im willing the bet they aren't alright.

I think 32PPM ~= 1.025 IIRC...not 100% sure though.

I would assume 32ppm, or 1.024 or so.

I would just add snails first, make sure they survive, then if you really want hermits, add them, but they might kill some of the snails.

yes his tank is at 32ppm, or 1.024 .. I think his problem was he did not acclimate them for very long. I think he said he only waited 5-10 min then in they went. I got him to to a water test lastnight and this is what he came up with.
Nitrate < 5
nitrite 0
ammonia 0
calcium 420 +/- a bit
kh 120mg/L
I told him these specs are good so He is going out today to get a few snails and to acclimate them very slowly.
Thanks everyone for your input. I will let you know how it goes.