suicidal snails?

attiladahun

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Mar 11, 2005
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i have 2 strange snail stories to share, and i hope for answers to these questions, especially if any of you are snail specialists.

First, i had been having a serious algae problem in a 10-gal about a year ago, so i bought a snail (species unknown, but nothing fancy or special). he crawled around the tank happlily for the first couple of days, but when he stopped moving around and didn't eat any of the algae, i just supposed that he was tired from his excercise the last few days. but he sat there for a couple weeks, and the lfs said that's normal. i picked him up, and he had a lump of stuff in his shell. i swished him around in the tank, and the stuff was poop. then the snail crawled around the tank for a day or so, then quit moving again. later, i picked him up and swished him around again, this time, yielding so much poo (or it may have been decayed snail, it was a different color than the other poo) that it turned my tank a funny cloudy color. i put him in the tank, expecting him to perk up again, but he didn't, in fact, when i looked at him again, i saw that his body was completely gone from the shell! i then threw it out. can someone explain this?

wait, theres more

my uncle has about a 40 or 50 gallon goldfish tank. he got one of those wal-mart snail in a cup things, just for the heck of it, and it thrived for a few months. the thing grew and even started to lay huge (about 1 in. diameter) egg sacs. my uncle, not wanting a snail breakout, threw the eggs out, having to throw out a sac about every month. then, he found the snail one day had crawled up to the intake, trying to get up into it, but its shell was too big and its body just stretched up into the intake, about 3 inches. my uncle took him out and he was fine for a couple of days, but did the same thing a few days later and this time, did not live to tell the tale. my uncle thought that the apparent suicide was due to the continual disposal of the eggsacs, resulting in depression (okay, maybe not that deep). but we still wonder what happened with the snails.

i had to share these stories, if anyone has opinions on this or any advice, please post. :) :) :)
 
well I have had suicidal snails in the past as well. I had the same problems that you did except that some more snails also crawled right out of the tank!
I think this strange behavior is because of lack of food. I know there was lots of algae but snails don't eat all kinds of algae! they really do prefer fish food or plants.
 
It sounds like the snail your uncle bought was an Apple snail. They grow to be quite large. Maybe the snail was trying to find a safer place to lay eggs. Somewhere your uncle couldn't get at them. AFAIK, they like to lay their eggs out of the water. usually on the lid of the tank. Sometimes they don't, but from what I've read, that is their ideal place.

I don't believe it is lack of food. If there were a lack of food the snail wouldn't have been laying so many eggs.
 
Sometimes snails just die ;)

Assuming plenty of calcium for good shell growth and no copper in the tank. . my guess is it was just your snails time. Calcium defeciency is slow and shows up as white etching on the shell. Aside form heavy metals there isn't much that a snail can't live through. As far as the suicide in the intake tube, snails don't seem to know very well where is safe and where isn't. Most of them aren't even good at avoiding predation in a tank. and will try to go anywhere there is bio-film (that's everywhere underwater really)I have a lot of them try to crawl through the impellars in my powerheads, and many don't make it through. Snails can and will live on bio-film alone, so starving them to death in a live tank is close to impossible except for the larger apple snails. But as said if there wasn't enough food they wouldn't normally lay eggs.
Dave
 
my ramshorn snails shell is crooked. its always vertical even when the snail itself is horizontal. looks weird likes its not attached.
 
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