Help! Clam Closed up Tight

Found this on a website:

Poor Tissue Expansion

Sometimes a clam won't expand fully and may remain contracted for several days or longer. There may be a number of reasons for this happening, some of which are mentioned in this article:

A pH that is too high or too low. Maintain a pH between 8.0 and 8.5.
Too strong or too weak water current.
Being downstream of a coral releasing terpenoids into the water. Move the coral or the clam. If more of your tank's critters are affected, use protein skimming, carbon, and water changes to remove the compounds from the water. If this doesn't work, the offending coral will have to be removed from the tank.
Stinging sweeper tentacles from neighboring corals. Move the coral away from the clam.
Fouling or over-growth of algae, bacteria or mucus. Siphon the stuff away and alter the water flow around the clam.
Being irritated by a fish or other tank inhabitants.
Excessive UV light. Move the clam lower in the tank and make sure iodide is being added in proper quantities. You may need to put UV shielding between your lights and the tank.
Too intense light. Move the clam lower in the tank.

I'll look into those ideas.

 

update?

 

Thanks for asking!

Well, late last night he decided to open. His mantle looked normal, but his mouth was reaaallly wide. I don't know if that's normal not. It wasn't gaping, since the mantle appeared normal. This is before I had a chance to move the nearby coral.

I haven't turned the lights on yet (go on at 1pm) to see how he reacts to the lights. But right now in the dark he is semi-open.

 

how is he?

 

Well he was open for a couple days, looked normal and healthy, and today he is closed up again. So I think maybe he is just a little moody!

 

have you checked your mag,cal,alk lately? since introducing my clam my cal & mag have been depleted faster than before.

 

I haven't but I just did a WC, and the levels are always high after a WC. I'm due for a testing in a few days.

 

hope all works out ofr u,good luck,i wouldnt worry inless this is going on past a week. is it in the sand bed? mabe its trying to move and it cant grip anything to move so its mad...

 

He's on a rock and hasn't moved for weeks, so I'm pretty sure he is happy there. He did open for a couple days, so I think he's fine. He is just being a pain!

 

Hope your clam stops being moody soon, If not you can name it Moody Blues.