I wish you were close to me, I have a lid! I've never seen my neons jump, but true, you never know.
Certainly are all capable. I just plan on adding lids on all tanks as most of them have snails, too. Not to mention i hear the fish splashing around the top a lot on stormy mornings.I have lids on all tanks now.
I have had a green neon tetra jump out when doing a water change. Only last month I had a Siamese algae eater jump out when it was feeding time. I can think of another 3 occasions when other species of fish have jumped out.
I am of the opinion that all fish jump.
Made my day.Judging the images of community tanks I see on this forum, the great number of posts related to cycling, and issues with algea and diseases, I believe most people require a lid to keep fish inside the tank. There is some logic in this message.