Derasa Clam not looking so good
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maybe hes not getting enough light? or maybe too much? im no clam expert but i know they depend heavily on light.
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Did you flip him over and look for pyramid snails?
Yeah, but I didnt actually know what I was looking for until I googled it a few minutes ago.
I'll check again
Edit: no pyramid snails.
It does close when I pick it up, and I noticed a minute ago it closed rather quickly blowing sand everywhere when my saddleback swam close to it. So it does have a somewhat quick reaction when stimulated. It's never had the same sensitivity to light as my maximas though
I'll check again
Edit: no pyramid snails.
It does close when I pick it up, and I noticed a minute ago it closed rather quickly blowing sand everywhere when my saddleback swam close to it. So it does have a somewhat quick reaction when stimulated. It's never had the same sensitivity to light as my maximas though
Looks to be loosing some of the blue color around its lips as well I'd guess lighting if there is nothing picking at it .
Are there any shrimp in with it some like to pick ?
I hope it pulls through.
I don't know maybe its lighting or angle that makes it appear the blue is thinner
Are there any shrimp in with it some like to pick ?
I hope it pulls through.
I don't know maybe its lighting or angle that makes it appear the blue is thinner
No nothing predatory, in fact thats the whole reason why I haven't moved them, can't catch the emerald crab out of the other tank. And I don't trust him lol. Dang it Terry you jinxed my clams!
Edit: the blue is there, the mantle is just folded over the shell, which is basically the whole problem.
heres all 3 clams (yeah I know, the maximas need some rubble) I had them mounted but the urchin that I have gotten rid of now knocked them off the scape
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Edit: MAYBE he is just ticked off because the flow has been changed. I didn't have the nozzle on the return until earlier today, when I found it looking for something else. I rinsed it off and put it back on and pointed it actually in the general direction of the clam.
seeing as how the younger more sensitive maximas would be suffering from light or bad water as well, if the problem doesnt resolve itself, I may consider a freswater dip. There could be something inside the clam, like a worm. That's all I can come up with.
Edit:
Edit: Sure is taking it a long time to open back up.
Edit: No shrimp at all. I removed the cleaner shrimp when I added the clam. I have some hermits and non-predatory snails.
Edit: the blue is there, the mantle is just folded over the shell, which is basically the whole problem.
heres all 3 clams (yeah I know, the maximas need some rubble) I had them mounted but the urchin that I have gotten rid of now knocked them off the scape
Edit: MAYBE he is just ticked off because the flow has been changed. I didn't have the nozzle on the return until earlier today, when I found it looking for something else. I rinsed it off and put it back on and pointed it actually in the general direction of the clam.
seeing as how the younger more sensitive maximas would be suffering from light or bad water as well, if the problem doesnt resolve itself, I may consider a freswater dip. There could be something inside the clam, like a worm. That's all I can come up with.
Edit:
The edges of the mantle (the blue part) are curled over. That is why it looks thinner or not there in some places. This is the whole issue with the clam right now.
Edit: Sure is taking it a long time to open back up.
Edit: No shrimp at all. I removed the cleaner shrimp when I added the clam. I have some hermits and non-predatory snails.
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Have you tried moving it to a less lit area in your tank?
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I figured you could check for mantle extension when it's not in a well lit area. If it's not reaching for light while in a dimmer area, you might have a more serious issue at hand.
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although I could be wrong as it has been many years that I had clams, when I had them, their light requirement was the same as SPS....MH....and it seems most on-line dealers still do that, so I venture a guess that your compact fluorescents would not even have 20% par to feed clams.....for maybe a month or 2 max before they start to deterorate....they need intense lighting
as I was typing this...I goggled this:
http://www.advancedaquarist.com/2013/4/inverts">http://www.advancedaquarist.com/2013/4/inverts</a>
"This is due to the fact that when a tridacnid adds on shell material, it doesn't just make the shell longer and taller at the edges. When growing, these clams also add on a significant amount of material to the inside of its shell. It gets thicker and thicker and is quite dense, so a large specimen can really suck up the calcium/alkalinity in a tank, depleting it surprisingly quickly. This is especially the case if there are lots of corals to compete with. So, make sure you keep up with their demands.
Other than that, providing sufficient lighting is really the most important aspect of their care."
as I was typing this...I goggled this:
http://www.advancedaquarist.com/2013/4/inverts">http://www.advancedaquarist.com/2013/4/inverts</a>
"This is due to the fact that when a tridacnid adds on shell material, it doesn't just make the shell longer and taller at the edges. When growing, these clams also add on a significant amount of material to the inside of its shell. It gets thicker and thicker and is quite dense, so a large specimen can really suck up the calcium/alkalinity in a tank, depleting it surprisingly quickly. This is especially the case if there are lots of corals to compete with. So, make sure you keep up with their demands.
Other than that, providing sufficient lighting is really the most important aspect of their care."
Ive seen them do well under LED, and not to argue with you, as I do believe you are correct about the power compacts.. do you think the maximas, which require even more light, and have been in the same tank for the same amount of time, would be showing signs of stress before the derasa?
Or maybe it is because the derasa is over twice the size, it needs more light. Anyway, derasa require moderate to intense lighting, maximas are the ones that truly need the intense light. At least this is the impression I am under and what my friend also believes
Or maybe it is because the derasa is over twice the size, it needs more light. Anyway, derasa require moderate to intense lighting, maximas are the ones that truly need the intense light. At least this is the impression I am under and what my friend also believes
right, agreed, PC's are crap. I'm trying to catch my emerald crab so I can move them into the tank with better lighting, until my 30 rimless build is done, at which point everything I have will move in there. I wasn't planning on the build taking so long, really, I should have finished it a month ago.
HOWEVER... you can see what I'm saying about the maximas demanding even more light, and being just fine, while the derasa, which should do fine under moderate light is the one suffering. It does seem that if the lighting was the cause of the issue with the mantle not extending, that the maximas would be worse. That's why I'm looking for another problem, as I don't think that the lighting is the exact problem (although you are right, it's not good enough) that is causing the mantle to not extend.
HOWEVER... you can see what I'm saying about the maximas demanding even more light, and being just fine, while the derasa, which should do fine under moderate light is the one suffering. It does seem that if the lighting was the cause of the issue with the mantle not extending, that the maximas would be worse. That's why I'm looking for another problem, as I don't think that the lighting is the exact problem (although you are right, it's not good enough) that is causing the mantle to not extend.
Thanks. I've been researching an I've seen where people think that they have a derasa with pinched mantle, RO dip it, and it come back. While derasas do not actually get PM, I think it might be sort of a blanket remedy. I plan on trying if there's no improvement tomorrow.
I might move it with or without catching the emerald crab tomorrow.
I might move it with or without catching the emerald crab tomorrow.
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