From reading other threads I noticed something- it looks like some people have had trouble with keeping plecos with puffers. I tried in my 55g with 1 SAP. He killed 2- 2in plecos over night. All the fins and tails gone. He was only 3/4 in. at the time. Never killed another fish and not a big fin nipper. I haven't tried any plecos again with my other puffers. All I can figure is plecos must taste like snail or something. Anyone else have an experience with keeping plecos with puffers?