Ok question. My brother-in-law has a purple tang with hlle. I was wondering if the vitiman c we consume is the same in fish? The reason I ask is he will eat my daughters Gummy-vites They are loaded with vitiman c I have read that hlle is partly caused by a vitiman c def. My other question is, is this ok to feed him this. I have had a saltwater tank for 11 years, I also fish offshore as I live close to the ocean so my fish get a nice varity of fresh food I catch myself, Its hard to beat the real thing IMO. Thanks in advance