Crocea on sandbed?

[mia1974]

Does anyone out there keep crocea clams on the sandbed (attached to a small rock for bys. gland) instead of on their live rock?
I am wondering if I have to move the clam up, or can I just leave it where it is on the sandbed? Tank is 24" in height and I use 400 watt 20K halides.
The clam is about 4" in length, and has appeared to be doing well for the past 2 months.
Thanx for any info in advance :)

[simonh]

All my crocea's are on the sandbed about 12-13" water under a 250W 10k HQI. I have no experience with the 400w 20k bulbs.

If it has been doing well for the last 2 months, has shell growth and good colouration I would just leave it as is so not to upset it.

[jim norris]

Hello,
The crocea clam really if possible should be on a rock. They are known as the boring clam. In the wild they will bore into the rock for protection. One of the reasons for their high price is that a driver has to chistle them out. Your idea of a smaller piece of rock is a great one that way you can move them upwards toward more light. I have a 24 inch height tank with 400 watts and my croceas are (after time) 12 inches away from the bulbs.

[OrionN]

In Nature, Crocea are found on rock. However, in our tank, they will do just fine in the sand. I like to put them on the sand first so i can check them for parasitic snails and clean them off the clams. Onece I am sur that there are no parasites, then I move them to their final position. I have 16 clams in my tank. All of them are on the sand. I have 400 W MH, six of them on my 8 feet tank.

[SueT]

My 1 crocea clam was on the sand bed for awhile til it attached and now is up in the rock structure. The blue was sold but I still have the turquoise.
http://suetruett.homestead.com/files/tn_croceas.jpg

my 180 ecosystem sps tank:
http://berlinmethod.com/suet/
my 120 ecosystem sps tank:
http://suetruett.homestead.com/home.html
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