The best chum offshore reef / bottom fishing is the following in my humble opinion... :thumbsup:
#1 Set someone up (usually a child to keep them busy or a lady / older angler that doesn't want to tangle with the bruisers) with a chicken rig baited with small pieces of squid... fish regurgitate and fish puke makes great natural chum at all levels of the water column... *this adds to others catching fish and the same over and over and over...
#2 Gut your catch... guts stink and make great chum also... plus it all but eliminates any issues with your fresh catch...
#3 Keep your bait from your trip... ALL of it, frozen, dead, live, fish, shrimp, crabs, etc... chunk it all up (don't use your mothers blender)... put it in an appropriate sized container WITH some menhaden oil... pitch a spoon full over board every 5-10 minutes... DO NOT place it in a bag... a huge oil slick on top attracts the wrong fish!!! *An oil slick will be visible just from pitching it into the water thus the every 5-10 minutes... eliminating a steady stream...
*Menhaden oil works... I have made chum up that included outdated food (Doritos being one ingredient) and caught snapper and grouper that puked up Nacho Cheese Doritos when they hit the deck!!!