[coral reefer]

If the Gorgonian is of any other color than brown/cream colored, it is aposymbiotic and thus requires feeding for survival as it does not have Zooxanthellae that relies on light for nutrients.
I would go out on a limb and say that with what you have as far as corals(octocorals) and Gorgonians, an iodine additive would be beneficial as iodine is absorbed and removed fairly quickly by live stock as well as your protein skimmer.
Iodine will aid in coloration, growth in corals, and germicidal properties!
With the livestock you have in your tank, you really don't need to feed liquid food to any of your corals as they will adsorb nutrients from your water column. A good trace mineral and vitamin supplement is all you need for them. As for the fish and possibly your Anemone and zoos, I would offer Mysis and/or Brine shrimp, clam, and counter with a vegetable food such as seaweed, other macroalgae, spirulina flakes to offer especially your Tang, nutrients to combat Lateral line disease!
Feeding 2-3 times a day is best in which the food is eaten within 5 minutes top is best. In addition, for your Yellow Tang, seaweed, or Romaine lettuce adhered to one of the specialized holders sold in pet shops will go far in keeping your Tang healthy and happy since it is a grazer by nature!!!!!!!!!
I hope this helps!