Some bodies of water are diurnal, IMHO. I used to not believe that some bodies of water shutdown after sundown. I've learned otherwise. Fished a friend's pond, where 20 - 40 bass was normal in 4 - 6 hours. 13 night trips produced 2 bass. He tried warning me, but I had to learn the hard way.
My home lake is clear and very tough at night. On night trips, I hunting big girls and not numbers.