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MAKE SURE YOU ARE USING GLOW!!!! It really makes a difference to keep your jig glowed up. Glow+Rattle is even better. If you are still marking and not catching apply some lunker lotion to your jigs scent really helps. Lots of people like deep water, personally, for night fishing I like 5-15 ft flats close to deep water.
Jig for them right off the bottom with a minnow head or any cut fish on anything that rattles(buckshot, rippin rap, rattling flyer, walleye talker) on the same structure you find walleye or perch(25-35') after dark and you can't miss. Don't forget to buy some 7up so you can boil the eelpout in it with salt, dipped in melted butter...yummy. POOR MAN'S LOBSTER!