Stopping at 55 degrees comes up often from different sources. I asked the question to the hatchery when I picked up my HSB and he stops at 55 degrees. The incremental fish growth/value versus waste/cost of pellets is not worth it.
I'll keep an eye on the temp. Currently just above 60.
On a related note, I have rarely seen any active surface feeding this spring through the summer. I've never seen the piranha frenzy shown in some videos so the feeding only what they can eat in 10 minutes is just a good theory. From other posts this lack of surface activity doesn't seem uncommon with fish in some ponds waiting for feed to sink.
Alternatively, the BG are finding plenty to eat elsewhere and my daily 1s feedings are just supplemental snacks. I’m inclined to this theory given the stocked BG are at the 130% RW. It will be interesting to see next Spring if having a more and larger BG puts enough pressure on the pond to create more demand for pellets.
