I noticed that there are a few companies that sell underwater lights that attract baitfish. I even read about a few homemade ones made from 12 volt car light! Green seems to be the color of choice! I read a few testamoinal's from fisherman that used them and they sounded pretty good! You do have to use them at night or in low light, about 10 feet down, but not only do these attract baitfish, they also attract large predators (cat fish) chasing the bait! I guess the green light doesnt freak them out! I know around docks the lights out of the water, but pointing to the water, will attract bait fish anyway. Has anyone used one of these or have tips on making them? I know from doing a search, you can buy them from 25 bucks to 60 or so, most work off of 12 volts.