This is what I do with salmon. I get cedar shakes from a scrap pile at the hardware store, soak them with water, and smoke cook the salmon on the the middle of the grill. I was out of alder chunks so last night used cherry and plum for smoke. The cedar smells great when the salmon is cooking but aluminum foil works just as well and the salmon cooks faster not having the wood for insulation. This is a coho should from a fish I caught last summer.