Okay... I'm a little worried I'm going crazy, but my Sim harvested life fruit (finally!) and I was waiting for a time later in the day when I could cook dinner to make 'Ambrosia'. I tested seeing if I could put Life Fruit on the food replicator and it appears I can... but I got distracted and I don't know what I did with it afterwards! I think one of my Sims ate it... GRRRR! The timing was working really well, because I was trying to stop my Sim's son from aging to Elder since he wouldn't be able to have kids anymore, and I had all the ingredients for Ambrosia, and then I did this! BUUUUT... I was also wondering... it may sound weird, but can life fruit disappear, as in evaporate after a certain amount of time after you've harvested it? I'm not sure and I wondered if it was one of it's magic-y properties.
BTW, I put two death fish in an aquarium and they had babies!! I didn't know you could do this... cool!