as usual the packing was great. foam box, heat pack and extra thick double bags.
i usually take the extra bag(s) off so there is just one left. then place in the tank to match the temp. let it sit for 20-30 min. don't turn your lights on, the clams have been in complete darkness for 12 or 14 hours and you don't want to shock them, also intense lights will heat the water in the bag faster then the rest of the tank
while your waiting test the SG of the shipping water so you know how far off from your tank water it is and how much adjusting you need to do. my test showed 1.026, that what i keep my tank at so i was good, but you still need to slowly add water to get other parameters matched. the PH in the bag will be low, the clams been that small bag pulling O2 out and giving off CO2. you could test these things if you like but i dont bother, i just assume they are different then my tank.
next after the temp has matched, add about a 1/4 cup of water from the tank, wait 10 or 15min and do it again. do this untill you at least double the volume of water in the bag.