Problems with clams

[bobssecrtsn]

Hey guys, So acouple days ago i noticed my clam Gapping, i didnt think much of it because i thought it was just come and go, well Today looked the worse, im not sure what went wrong. Heres acouple pictures, it does look like it might have Pinched Mantle but im not sure .

Current system is 60g
6bulb ATI fixture
3x MP10

CA: 420
ALK: 7.8-8.1
MG:1300
No3: .05
P04: .02

everything checks out fine i dont have any fish that nips on it. i dont see any snail pest underneath it.. any ideas?

 

[Aznyoyoboy57]

hmmmmm maybe current is too high? hmmm how long have u had the clam?

 

[skinz78]

Sorry I missed this, what fish and inverts do you have?

 

[shellynjason]

How long have you had it and What kind of Clam is it?

I read that the Crocea will gap on the top, but it the sides gap then there is an issue. I have a Crocea (just got it last week) and it gaps everyday but the mantle is way out too.