clam question - did he tear his foot?

[stoelton]

Upon checking my tank last night I discoverd that my 3 inch Crocea was tipped on end away from the rock he normally is perched on. I righted him and found that he had pulled away from the rock he was mounted on leaving a substaintal tuft of white threads attached to the rock. He has been very happy, responsive and is generally open all the time except when I am in the tank. He has been happy as a clam for 2 months and now he has done this. I righted him on his rock and left him alone. He closed up tight for the rest of the night.

No siginifcant changes I am aware of other than I'm trying to get my calcium up above 400. I have been slowly (past 7 days) adding b ionic (calcium only). Calcium was at 330 when I started moving it up slowly.

params

CA - 390
alk - 8.5
Mg - 1100
Ph - 8.2
SG 1.025
Nitrite 0
Nitrate 0
amonia 0
Po4 0.25

He normally sits up high in the rockwork about 12-14 inches below a 250w 14.5 K SE XM. Until he was detached I noticed no signs of stress. There is a 1 inch maxima sitting 6 inches from him, and the max is doing fine!

Any ideas

 

[calvin415]

Mine did the same thing months ago... But it's doing fine and has since reattached itself. As long as the gland is intact it should be fine and can regrow the threads.

 

[stoelton]

He's already re-attached

He's already re-attached

When I got home last night, I checked on him and he was fully opened and re-attached. I read up a little more and discovered that I had him set wrong. Apparently if you set your clam so that his gland is on the uphill side (he is on a slight angle) gravity will pull his gland out and potentially damage it. I turned him around so gravity is pushing the gland down onto a rock - not pulling it out of his shell.

He is now attached, open and looks happy.