Mark,

When my crab apple dropped it's spent flowers my fish tried to eat them and I
lost one when it got caught in the throat and an otherwise heatlhy fish was
dead within and hour. I don't know how pears compare to crab apple, but you
might check a dead fish's mouth to see if they tried to eat something too big
to swallow. Just a thought. Sorry to hear of your loss.

Karen
Zone 5
Ashland, OH
http://hometown.aol.com/kmam1/MyPond/MyPond.html
My Art Studio at
http://members.aol.com/kmmstudios/K....M.Studios.html
for email remove the extra extention