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Old 03-19-2004, 06:56 PM   #1
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Crocea Clam question

I have a pretty good sized crocea clam and for the past day he has not opened. I have had him a little over 2 months maybe three. All the water peramtirers are Great and normal. Now could something be irritating him or is this normal? ANd help would be great
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Old 03-19-2004, 08:39 PM   #2
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Now could something be irritating him or is this normal? ANd help would be great
You say great and normal water parameters, but what about nitrate? As with all inverts, nitrate can be a problem if too high. Have you changed the lighting of the tank? What about water flow? Has that changed?

Where do you have your crocea placed in the tank? They are rock boring so they need to be placed on a rock. If left in the sand, it is possible that a bristle worm or other "critter" in the sand is irritating its byssal muscles. Move it to a rock if not already on one.

Another possibility is that he could be infected with pyramid snails. A nasty little pest to say the least. You need to look the clam over, especially on his underside if possible near his byssal to see if you see any of them or their eggs. The snails are extremely tiny. About the size of a rice grain. If found, manual removal is about the only course of action to rid them. They are some wrasse that eat them, however.

I am sorry I cant offer much help. I am fairly new to clams myself as I have only had my T. Maxima for about a month now. I have been trying to learn as much as I can in this short time but there is a lot to take in.
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Old 03-19-2004, 08:57 PM   #3
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I'm sure that NO3 should not be a problem for clams, clams are different from other inverts, they need NO3. I would look into light instead, clams need strong lighting. Also clacium, strontium and iodine is essential. Do you have butterfly fishes? I'm sure butterfly will cause them dare not open up.
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Old 03-19-2004, 09:03 PM   #4
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No no butterly fish here. I have a 250 metal halide and the clam has been under that since i got it. I mean the day i go the clam it was fully extended when i put him in the tank. And his mantle not even kidding hangs over his bodya a good 3 to 3 1/2 inches when fully extended. HE is on a rock. Calcium is at 440. Now he is open a little but no mantle going past his shell. Not sure what to do. Do you really think snails is the cause. wouldn't they have bothered him by now, And how did they get in my tank?
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Old 03-19-2004, 09:21 PM   #5
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I'm sure that NO3 should not be a problem for clams, clams are different from other inverts, they need NO3
This is where I show my green for clams. I had no idea about this. Very interesting...

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Do you really think snails is the cause. wouldn't they have bothered him by now, And how did they get in my tank?
I have no idea if it is snails. I would check him over to make sure just in case. Again, I am kinda grasping at straws here as I don't really know much about the creatures...
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Old 03-19-2004, 09:28 PM   #6
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I look over the clam and didn't see anything. Were is ReefRunner when you need him. Well i hope maybe he is just mad about something and not something seriuousy wrong with him. I don't know what to do!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
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Old 03-19-2004, 09:31 PM   #7
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Have you tried looking over the wetwebmedia site for info on clams? There is a ton of useful information in there that may be of help.

http://www.wetwebmedia.com/marind5_5.htm

Go to the Mollusk catagory and you will see all kinds of links for Tridacnids.
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Old 03-19-2004, 09:32 PM   #8
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I don't think snails would be a predator of the clams, and you have the clams of almost 3 month times, I don't think the snail would disturb it the whole of 3 months, for my tank, the snails are always on different spot everyday, should have said every hour, they just keep moving. But what I'm afraid is that the snail is trying to eat the algae in the clams that is providing nutrients for the clams. Try reading this article. HTH

http://www.reefs.org/library/talklog...ts_081797.html
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Old 03-19-2004, 09:37 PM   #9
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I don't think snails would be a predator of the clams
Actually this is incorrect. Pyramid snails will kill clams. If there are no clams in the system they will find other sources of food (i.e. astreas, turbos, etc...).

Look in the article you linked to about 2/3 down the page.
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Old 03-19-2004, 10:02 PM   #10
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Oh ya biggen is correct, clams are prey of snails!!! 8O Wow, how scary. Try look out for your snails too, brndfrb. But its quite a headach, snails are accessible to almost all part of the tank. i think its better to remove the snails. Maybe consider changing to other types of tank cleaner.
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