I think Captain Jack Sparrow ate one of the Harrys.
I find there to be no other possible explanation, despite the fact that the petstore guy INSISTED that snails only eat plants.
Granted there are other solutions. Possibly, one of the Harrys inherited an Invisibilty Cloak. Or was sent to live with the Muggles. Or went through a rift into the Nevernever, depending on which Harry it was that did the disappearing.
All right, fess up. Who ate my tetra fish?
UPDATE!Have perused the content of Applesnail.net , which informs me of several important things. Firstly, I have a Golden Apple Snail, Also known as a Golden Mystery Snail. They provided this picture:

Then, FAQ section provided the following insight:
Do apple snails eat fish or other creatures?
"Apple snail aren't very selective when it comes to food and some meat is always welcome to them, but healthy fish are simply too fast for an apple snail to capture and to hold. However, if a fish has died the apple snails will certainly consume the remains quickly, sometimes giving the impression that a fish has disappeared or was killed by the snails.
While fish are fast, other snails aren't and it has been described and observed that at least some apple snails predate on other snails. "
I have a PIRATE SNAIL! Another interesting question went as follows:
Are apple snails able reach supersonic speeds?
" In general: NO!
However, Carlos from Spain managed to teach his snail how to drive a car. Now his snail travels at extreme speeds and is able to reach 135 km/h. Unfortunately his last attempt to establish a new record failed on the French high-way as the snail was unable to reach the toll-booth. "
Hmm...
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Date: 2003-07-19 09:09 am (UTC)no subject
Date: 2003-07-19 09:49 am (UTC)I did some more snail research, and it seems some interesting eating habits have been observed...
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Date: 2003-07-19 11:38 am (UTC)Despite the sad nature of this post it still made me laugh out loud. My boss is sitting in the next cubical, so I'd better not keep this up too much longer.
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Date: 2003-07-20 07:36 pm (UTC)no subject
Date: 2003-08-09 09:01 pm (UTC)Oh my god, that was too funny. =D I'm sorry now that I took so long to follow the link you posted in your hp100 comments. *giggles*
Ah, poor little tetra.
Someday I'll have to tell you my story about suicidal elephant fishes.