Hmmm i just saw one of my plecos having a go at something i thought its a snail. got a closer look and boy was i wrong. it was my pregnant guppy with half its guts ripped out and floating still attached to it..... and my playful pleco sucking away at it eating it. i shoo'd the pleco away and immediately removed the pregnant corpse. but im just curious to why it died.... no way the plec could have killed it and it was swimming around all happy an hour before.... i just dont want the rest to die aswell.....like the plague or something.