I buy a 10# bag of a frozen mixture of seafood that is used to make Seafood Bisque. Cost around $15 last time I bought a bag which has been almost a year. It contains clams, crabs, lobster, shrimp, whitefish, salmon, octopus and mussels.
About once a month I fill a magic bullet container full, let it thaw. Drain. Add a spoonful of fresh garlic, 20 drops of Selcom, spiritual powder, a scoop of Reef Roids and half a sheet of nori. Blend in the magic bullet for about 10-15 seconds. Place it in a quart ziplock bag and put in freezer. Next day cut up into cubes and place in container then back into freezer.
400 gallon mixed reef that is very heavy stocked. My fish, about 70 of them all go crazy for it. New additions always start eating it almost immediately. My corals have much better coloration as they are getting the needed food with every feeding. Don't have to worry about spot feeding them anymore either. I no longer have issues with phosphate or nitrates spikes like I had when I would spot feed.
I was going through 2 packages of Rods Reef and other food per month which cost over $40 per month. I have around $30 into all my ingredients and figure it will last me over 2 years at the current rate. And all inhabitants in my tank seem much healthier and I know what they are eating.