#4 is fructose, but they don't offer a carbohydrate amount in the analysis, seem not so good. The not for human consumption note says "contains fish meal", yet that is NOT listed in the ingredients. There are many artificial colors.
I would NOT use it, even if given a free sample to try.
I went to their web site because I wanted to see the actual name of the product. Nowhere on the site did I see anything other than aquatics food.