A couple of months back, I noticed that one of my pleco's was missing from my 55, so I put in another. About a day or two after that, I decided to take down that 55 and put it away. Well when I moved it and the stand to the backyard, laying their behind it was not one, but both of my pleco's. The second was still fresh. My water parameters were fine and none of my other fish were sick or stressed. My Red Devil and Jag would always chase the plecos around and I guess they commited suicide by jumping out. The only opening I had was the one for the filter and was less than an inch and a half bigger than the filter. Anyone else have jumping plecos?