Beth, the SWF moderator of the disease forum, makes her own fish food. Here is what she has to say on the subject:
"I basically make my own fish foods. You can get a bag of frozen seafood which are sold to make seafood salads, oriental foods, etc., at the grocery store [ask the attendant at the seafood counter] or you can see what is available directly from the fresh seafood counter such as: octopus, scallops, shrimp, squid, clams, etc. Generally, no oily fish, such as salmon, however, if you have a fish that is suffering from Head and Lateral Line Erosion [HLLE], you can certainly target feed the effected fish with small pieces of oily foods a few times a wk [high in Omega3 Fatty Acids which is known to improve many cases of HLLE. Food process** this mix until it is pretty much a "mush" then roll it out on a flat pan in a square shape. Freeze it until it is solid, but not frozen like a block. Depending on how much seafood you have, you may be able to cut this up in a few 4" sq blocks [the size that brine shrimp is pkged in--the non-cube variety]. Do the cutting then place each "block" into a small freezer ziplock for storage [each having their own bag]. You can cut off chunks as needed for feeding. Use Zoecon or minced fresh garlic added directly into the seafood as you food process. If you are also feeding your fish veggies, like seaweed selects, shredded carrots, broccoli, etc., you can, as well, mix this right into the food processor with the sea food. If your fish likes a particular frozen food a lot, go ahead and mix that in as well.
Make sure you wash down your fresh foods thoroughly before mixing and let them drain off excess water before you begin the food processing. No need to add any water to the mix. In fact, I don’t suggest doing that at all.
As far as I'm concerned, home made foods made specific for your type of fish is the way to go, particularly fish that are obviously not healthy. It is easy and cheaper than the watered down foods that are sold for the hobby. Look at the ingredients of any frozen foods sold for the hobby. What is the primary ingredient----? “Moisture”…..yeah, your fish needs more of that, right……….
For reef tanks, consider this as "tank food" as well. Reef tank detritovores need to eat a well, and this receipe suits that purpose.
**I use a small dedicated food processor/chopper that cost me around $12. Excellent just for this purpose."