What vitamins or supplements to add to ensure health of marine fish

[MikesReef]

Curious to see what vitamins and supplements fellow hobbyists are adding to fish food.

For my tangs I alternate adding Selcon and Omega to Nori
I add Zoe and Selcon to the pellets/frozen

Like to hear what others are doing

 

[mnat]

I use vitamin C and elos aminos for fish on my frozen food. I will also add some garlic for when I first get fish.