I just added a snail, crabs (3 blue leg, 2 red and 1 emerald) and a pecula clown to my new 30 gallon reef and within 3 hours I've lost a few of the inverts. Please help me figure out what's gone wrong.... The live rock is in the tank for 3 weeks and my chemical levels are as follows: 1) Ammonia --- 0 2) Nitrite --- Between 0 and .1 3) Nitrates --- 0 4) PH --- 8.4 5) Specific gravity --- 1.024 to 1.025 5) Alkalinity --- Used 3.5 saringes of the Salifert test before the liquid turned pink. From what I understand this would not kill the animals and may be related to my calcium levels. Still trying to figure this out. 6) Calcium --- 525 mg's/litre using Seatest kit (35 drops * 15) Should any of ths be an issue ? The LFS guy told me to just acclimate the animals by floating the bag. not water drip.... I am confused and concerned... HELP ME !