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Old 01-15-2009, 08:41 PM   #1
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Why Can't I keep Clams?

Hey All,

I have a 90g, I have HQI 14k lamps. My Water parameters are PERFECT and stable.

Ammonia = 0, Nitrite = 0, Nitrate = 0, Phosphate = 0, dkh = 17, Calcium = 420.

I bought a blue/purple clam from the LFS it was fully open and happy at the shop, I bring it home it opens only about 1/4" and the mantel doesn't open up, it stays fully inside the shell. It's definity alive, you can see it moving..

I brought it back to the LFS and traded for another clam, The clam Ibrought back is now fully open and happy again at the LFS, and the new one is much the same as the last in my tank. I don't understand why, I'm sure my tank is cleaner and better than theirs.

Please help.

Thanks,

-TheChad
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Old 01-15-2009, 08:45 PM   #2
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Are you acclimating and how long are you waiting before returning it?
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Old 01-15-2009, 08:46 PM   #3
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how/how long did u acclimate them and how long did u have them before u took them back?
EDIT: Innovator beat me to it!
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Old 01-15-2009, 08:48 PM   #4
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They do take some time to fully acclimate. I`m thinking mine took about 3-4 days.
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Old 01-15-2009, 10:10 PM   #5
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What kind of lighting do they have at the LFS?
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Old 01-15-2009, 10:28 PM   #6
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Quote:
Originally Posted by TheChad View Post
My Water parameters are PERFECT and stable.
dkh = 17
That is EXTREMELY high, in fact I would test that again.
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Old 01-15-2009, 11:45 PM   #7
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Innovator asked two important questions....also, I'll assume that you're talking about a crocea clam or possibly a maxima? A couple other questions to ask.....where did you place it in the tank? Was the clam attached to anything at the lfs? This will sound strange but I'll ask it anyway....did you 'burp' the clam after acclimating it (a rocking motion of sorts to remove any air that may have gotten in the clam)?

Any handy pictures of the clam?
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Old 01-16-2009, 04:15 PM   #8
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ccCapt beat me to it. If your dkH is actually 17, that's not good. Are you dosing your tank with anything?
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Old 01-16-2009, 07:23 PM   #9
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OK, let me try to answer all the questions..

The dKH is 7 (NOT 17), That was a typo!

I belive it is a Crocea Clam.

They were both acclimated for 2 hours via Drip acclimation, neither clam was exposed to the air, I transfered them from the bag to the bucket to the tank submurged.

The first clam had been in my tank for about 5 days before I took him back (I wanted to take him back before he died), Within a few hours he was fully open in the LFS tank.

The Second clam is still in my tank today, it has been about 4 days now.

At the LFS they are in a plastic basket sunk in a shallow coral Vat sort to speak. They are under 14K HQI MH's at the LFS.

I placed the Clams in the middle of the tank, ontop of the sand bed. I tried placing them higher up in the tank on a rock ledge, but by the next morning they end up down on the sand, I'm assuming they are jumping (By Closing their shell quickly).

Again, its a 90g 4' Tank. The Light is a Coralife, uses 2 150w HQI lamps (Which I just replaced last week with 14k Ushio Bulbs), and 2 96w Actinic bulbs which are about 10 months old and are the origional.


Thanks,

-TheChad
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Old 01-16-2009, 07:53 PM   #10
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Personally I don't think you waited long enough and the more you come in contact with the clam the longer adjustment period; however, any possible fish picking at it? Is it getting indirect flow (shouldn't be direct with the mantle flapping)? Did you check for Pyramid snails? It would be correct to place them on the rockwork since croceas demand more light than the others...just throwing out some randomness
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