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Old 02-20-2007, 12:31 AM   #1
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Snails keep dying

I have 4 nassarius snails, 2 emarald carbs, a diamond goby, 1 scarlett hermit, 1 Peppermint Shrimp, and 2 (down from 6) Astraea Snails. I have found 2 dead Astraea Snails each of the last two days. I came home from work today to find another dead lying at the bottom of my tank. Has anyone ever had this problem or know why it continues to happen. i checked my levels and everything appears to be fine. I am going to bring water to my LFS so i can compare tommorrow.
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Old 02-20-2007, 01:57 AM   #2
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What are you keeping your temp. at? I had this problem when my temp was at about 80-82, but now that I have it down to about 78, all my snails are doing fine. BTW, all my parameters tested out perfect also.

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Old 02-20-2007, 03:01 AM   #3
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Astraea's are clumsy. Just plain clumsy. Let me guess... you found them augered point down in the sand? With the shape of that shell, it seems like if they "slip/trip" off a high piece of rock, they'll fall point first down into the sand. And unlike other snails, they can't reach their foot around as well as others to right themselves. I've read somewhere that if snails don't right themselves within a certain time period, they die. Not sure why... maybe someone elaborate. Obviously, if the crabs find them in that position, well...

Seems like I flip back over at least one of my astraes each week, and have unfortunately not noticed many others until they're goners. My trochus and nassarius though are either nimble enough to right themselves, or have a better shaped shell to keep it from happening in the first place.
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Old 02-20-2007, 08:52 AM   #4
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I agree with Kurt. I lose a lot of astreas too from the dreaded "stuck shell in the sand" thing. Most of the time you can flip em back over and them will be fine. Sometimes...its too late.

Also agree that checking for temp flucuations would be beneficial.
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Old 02-20-2007, 11:38 AM   #5
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My temp hovers right around 78 degrees give or take a degree. Is the any other sanil out there that is good at eating algae but isn't as suicidal as the Astraea Snail?
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Old 02-20-2007, 11:58 AM   #6
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I like cerith snails.
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Old 02-20-2007, 12:01 PM   #7
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Trochus snails... hands down my favorite. Followed closely by nassarius, but for different reasons. Trochus do a fantastic job of cleaning the rock, and I've never had one die from "sticking head in sand" syndrome. The only drawback to them is they get big and can have a tendancy to become lumbering snowplows across your live rock. I don't have much in the way of corals, but I've heard some folks complain about them doing a little rearranging of their corals.

I also have recently fallen in love with the BIG nassarius... think they're called Super Tongan on LiveAquaria. I just added one to my tank, and it does a fantastic job of plowing through the sand keeping it turned over. Think I'm going to add a couple more to keep my sand bed stirred up. I've seen it pitch off rocks on occassion, but they've got a super flexible, long foot that can get them back upright.
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Old 02-20-2007, 12:03 PM   #8
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I like the nassis too, it's cool to see them pop up from under the sand when they sense food. I would also suggest a fighting conch.
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Old 02-20-2007, 12:11 PM   #9
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you also mentioned you have crabs in the tank...the will eat snails.
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Old 02-20-2007, 12:14 PM   #10
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Yeah I do know about the crabs. I think they are the culprit in this. I just think my snails are falling off of the rocks and the crabs are coming in for the kill.
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