Have in my pelvis Panda armored catfish, Honigguramis & Neons. After a few days with the addition of vitamins to the food, the colors of neon are much stronger. They are also constantly shy front of the plate and not bisl more. The pandas have always been greedy but since the fish, the gouramis and certainly the Neons are getting the vitamins really greedy. Apparently taste vitamins very good. The color is really strengthen so strong I never thought. This is also the behavior of fish changes so truly stands out. Going to buy the vitamins naturally again and can recommend only.