Thanks for sharing sumfinwrong. haha. just typing that name made me chuckle.
I have had my Achilles for about 3 weeks now, it is eating everything from pellets to nori to frozen but unfortunately like most achilles its got ick even though I dipped it in freshwater and paraguard it, the damn ick still appeared. I figured as long as its eating and gaining weight, it should have enough strength to fight it off.
Here is what I have gathered from my 2 achilles tangs that I have kept. Feed heavy and feed constant(nori sheets), soak the feed in garlic and selcom to boost immune system. Make sure your tank has excellent flow to mimic the natural habitat, high flow and high oxygen level is what these fish love. Besides that I guess it all boils down to luck.