I sent the wife to the store while I was at work to pick up some koi food and I told her top pick up tetra food forgetting to mention the color of the bag (may fault). I get home from work and she begins to tell me that the sails person at the counter told her that the red bag of tetra color food was much better than the green bag my usual. It brightens color and is a better summer time food. My kids and her already opened the bag and fed the fish with her and all that is going through my mind is NOOOOOOOO. The fish seem to like it fine and no jelly floating that would make me think that they have upset systems. So now I figured I would do some research on it because the bag is now open and I don't want to waste the food or my money. From what I have read is that it is great for reds and yellows but it can stunt the maturation of the colors or over color (orange spots on a yellow fish) and the part that really concerns me is that it may turn my crisp white fish cream color or yellowish. Is there any validity to these claims? Should I keep feeding it to the fish or throw it out? instead of throwing it out can I mix it with the regular green bag of tetra? It would be cool to brighten up the fish but I don't want to do it at the cost of the some of my other fish not having there very clean bright white, especially because my colored fish are already pretty bright and vibrant. So I am sending up the becan to those who know much more about ponding than I. What do you guys think?