Well the good news is my powder blue tang is eating again and all is well. I'm not sure why he/she stopped eating all of a sudden. I believe it was the zoe, zoecon and vitamin c, i dont know why but after i stopped using them for a week the tang returned to eating...so I'll take it haha. The bad news is his lovely, bold color is back to its faded color but as long as its eating it can be whatever color it wants to be =]. Thankyou.