do plecos eat other fish?

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IheartmyOscars

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i have had 3 mysterious disappearances from my 10 gallon tank - 2 were mollies (black) and one recently was a buenes aires tetra. they completely dissappeared, and trust me, i have looked everywhere. could it have been my Pleco? he is about 7 inches (I know, too big for a ten gallon, he's moving into a 55 as soon as its cycled). my roommate is convinced that Bob (Pleco) is the culprit. is it possible?
 

Gargoyle

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Yes it is possible...

My pleco was about 13 inches long and a bully to boot. The bigger he got the meaner he was. He would fight the Oscar's which were larger than him and he would win. So it is possible.
 

lolagurl

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awww poor fishes ... i think it very well could be . It might have have gotten a little to crowded for him and him in close quarters with these small fish... I am tryiing to picture how big seven inches is. I dont think its big enough for him to eat the mollies, but myabe kill them. and then they got picked at by everything else..? :-[
 
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IheartmyOscars

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hmm. i just don't think its very plausible for him to kill one without anyone noticing, and then all these tiny little tetras eating a molly, along with hiim. the last fish that went missing occured during a 50% water change when i moved it to another room. he was there before, and then not when the tank was relocated. its very wierd.
 

Butterfly

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Usually plecos won't eat fish unless they are already dead. Their diet is more woody, vegetarian but they won't refuse the protein if its dead
Carol
 
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