This natural source of astaxanthin, derived from a unique strain of the microalgae Haematococcus pluvialis. The majority of the carotenoid fraction is astaxanthin, with about 15% of the remaining fraction consisting of canthaxanthin, lutein and beta-carotene. This highly concentrated form of natural astaxanthin has been carefully formulated into a fine, free flowing dark red powder and is an essential nutritional requirement for shrimp maturation and larviculture. Mix this with your flake and pellet food at the rate of 1 part powder to 500 parts feed. This will increase the platability and digestion of your food. Within 1-2 weeks you will see a large difference in the health and color of your fish because of the high amounts of Astaxanthan.