Have a few questions for those who are on the lake at light night as well as during the day. I have a 797 Humminbird fishfinder. It is amazing. Nothing short a miracle.

Have seen a few things which I plan on capturing on a storage disc this year. It is a phenominom that I can't figure out. I need to get screen shots for you to see...but for now please consider my best description.

At night time, I can read large large areas of bait fish holding to specific water depths. ie thrmoclines. I don't know what type of bait fish is showing up on my elecetronics but there is MANY of this bait and it is 5-7 feet thick. They disappear at day time. I really feel like they are fish because they are little banna shape figures..just like there bigger counter parts. I guess I am questioning how much bait fish can really exist in a lake? Where can they hide during the day?

Can zoo plankton build up during the nightime and create this thick blanket of forage? My best idea, is these are landlocked alewives which I hear go shollow at night and ball up in the deep during the day.

Anyone else see all of this activity at night on sonar?

I tried lights at night, can seem to catch a glimpse of these fish in 15 feet.

I have noticed shad schooling by the thousands at nite. I painted a crankbait black just for this.

hmmmm,

Maybe it is the Alewives.

How does that black crank bait work for you?

I have been throwing heavy black calorado spinner baits ... seems like it works but not necessarliy near these groups of bait fish.

You would be amazed at what electronics can pick up. A few years ago, doplar radar caught an amazing mayfly hatch coming off.