Yes, young Padawan.... :strooper:
Selcon is a oldie but goodie food supplement:
http://www.marinedepot.com/ps_AquariumPage~PageAlias~additives_american_marine.html
I don't use it, but I use something similar I like better. I use a combination of Brightwell Aquatics supplements:
http://brightwellaquatics.com/
AminOmega (omega -3, -6)
Max Amino (20 free form AA's in the ratios found in fish tissues)...they also have a great free form AA supp for the tank for corals
Vitamarin M (multi for fish--they have one for the whole reef tank "VM") and C
Garlic Power (WAY better than the others out there--not chunky and is POTENT)
Garlic and Vitamarin C I use as excellent disease preventatives, but for an Achilles I would use all the time, as they're prone to succumbing to stress.
I put the amounts of each that I want to use in a custard dish and add the foods I want to feed, rotating each time. I make up enough for 5 days at a time and keep refrigerated. Fish love it! And I get peace of mind knowing the foods they're eating are giving them all the nutritional profiles they would be getting in the wild. For supp Seaweed, that's easy.... just mix up and then drop on with a turkey baster, smear over the seaweed and let dry before feeding. When I do this, I treat 14 days worth, allow to fully dry, then store in a ziplock.
Cheree