I night fish a local lake once the water temps reach into the upper 75+. The best way I have found to night fish is to:
1. Go to a spot where you normally catch fish. Move the boat from the shoreline to the first significant drop off of 4-6'. Watch your depth finder close. The first drop-off in depth seems to be key for me.
2. Get a submersible light (take an extra 12V battery with you) drop it in the water about dusk. It will usually take 30-45 minutes before bait shows up in the water.
3. Fish very very light. I don't use any weight at all. I fish a #4 hook under a bobber about 2-3' below where I have set the light (usually 4-6') Get some small minnows and hook them just under the dorsal fin. Hook the minnow very light so he swims around.
It's just a matter of time before the fish show up. This is an almost fool-prrof method at my local lake. I can't promise you'll have the same luck, but it's definately worth a try. It's nothing to catch 40+ fish an hour once they start hitting.
It's usually just a matter of time before the fish appear.