Hello, I just got a new derasa clam yesterday! It's a little over 3 inches from end to end. Maybe close to 4. Anyways I have an ai hydra led light and I have placed it on the sand like I have been told. I am fairly certain my LFS didn't expose it to air because he told me to make sure that I don't expose it to air when putting it in my tank. I use his same water so I don't mind getting that in my tank (he has the cleanest store/tanks/water I have ever seen) still I know many of you advise against this. When I finally placed it in my tank yesterday my peak lighting period was already started to decline so it is yet to be exposed to a full day of peak lighting in my tank. It did not open completely yesterday maybe 3/4 or 1/2 an inch. I am not worried about lighting and it has plenty of flow but not directly in front of a powerhead or anything like that. Should I be worried or is it normal not to open very much right away? Also even though I am fairly certain it was not exposed to air should i still attempt the burping method to make sure? Would this harm the clam if it does not necessarily need to be burped? Btw it does not have pinched mantle, any bleaching, gaping, or those snails everyone says to watch out for. Looks like a very fine specimen.


