I remember every restaurant where I got an excellent meal last year.
Your fish probably have better memories than I do. I suspect they are going to be very happy to see their favorite restaurant has re-opened this spring!
The best way to find out the right temperature is to experiment on your own fish. Toss out a little now and see who comes for dinner.
Several people on the forum have already reported feeding activity this year in ponds with colder water temperatures than yours. However, I am sure species and specific pond conditions do matter.
Good luck, and I hope you soon have happy (and growing) fish!
