Clam not opening fully

[mottomegl]

I bought this clam three months ago it was doing great can see all the new growth but now it is not opening fully water parameters look good
n03 50-


p04 .1+


kh 7.5


ca 410


mag 1215

 

[Tahoe61]

It's a Derasa, that LPS right next to it may be sending out sweeper tentacles. Move the clam farther away, and check for Pyramid Snails at the base.

 

[mottomegl]

I was not sure if corals would bother it will try moving it didn’t see pyramid snails