Crocea Tips / Advice

[jasper24]

I am upgrading from 130W PC to a 150W 20K MH next week so that I can keep a clam in my 20. I have read a lot but have a few questions. My LFS has some Ultra Grade Croceas for $69. What are some basic things to look for to determine if they are healthy? Can someone tell me what is pinched mantle and what are the signs? Thanks!

 

[menace]

Here, scroll down this page to;

"How to Choose Healthy Giant Clams at the Aquarium Store"

http://www.aquariumfrontiers.net/On_The_Half_Shell.html

and Pinched Mantle;

http://www.reeffrontiers.com/forums/showthread.php?t=7262

 

[jasper24]

Thanks!

 

[SSweet1]

Pinched mantle is where a section of the pretty mantle edge appears to be curling inward or a section of the clam is retracted. Make sure they have had the clams there for a week to two weeks, also check for any tiny white cone shaped snails around the bottom foot area. Croceas and maximas like rocks but derasas like the sand bottom, however I have a maxima that prefers the bottom, they throw themselves off a rock if they dont like it!! Carrie