They are living on the egosystem of insects and maybe fry from the spawn. I have a population of mayflies that came off this spring. Don't forget I only have eleven to date, and one BG. I also now have 4 rainbows that have survived. The pond temp is 78 degrees top to bottom, taken yesterday. On the border of losing the trout if it gets any warmer.
I'm waiting for the big hex mayflys that I stocked last year, by capturing them locally, and releasing the the duns to mate over my pond. I hope they took, I should find out in a week or so. I thought it might work because the big hex's are mud seeking nymphs.
Have you applied the BP 100 yet?
