Hi guys.. I was feeding my blue hippo tang Sea Veggies from Two Little Fishies and feel it was very premium product. His coloration remained vibrant and pretty. I ran out of the that seaweed and decided to buy a cheaper thinner pack of Seaweed from Amazon. (Suggested from fellow reefers). Its been about a month since the switch and I noticed the tang's face is now a little bit darker, not as blue as usual. Could that be the effects of quality in seaweed fed? Should I be switching up the types of seaweed often? Thanks!