In all honesty, a person shouldn't even need proof that it's a top quality food because a person only has to look at the ingredients to know that it's going to be good for them. Coming from a holistic nutrition stand point, as soon as I saw the ingredients, I knew that it was better than any of the other foods I've seen. After all, fish in the wild don't eat wheat and corn and all the other garbage that is in most other brands of fish food. All a person has to do is compare the ingredients of NLS to other brands
So I got one of my containers of NLS Discus Formula and here is a list of the 1st four ingredients:
Whole Antarctic Krill Meal
Whole Herring Meal
Wheat Flour
Whole Squid Meal
Well dog gone there is wheat flour. I guess that means NLS contains garbage ingredients? And I wonder what soybean isolate is and which fish in the wild eat soy? More garbage I guess?
Because I am a nice guy I am going to show you another food that uses a similar pitch as NLS
I would recommend that if you are trying to purchase a top quality tropical fish food, that you search the Web and try each and every tropical fish food that YOU deem to be of top quality and of top nutritional value for at least 2 months. If indeed you follow this recommendation, I'd ask that you include "Almost Natural Tropical Fish Foods" in those tropical fish foods that you try. When deciding which tropical fish food(s) you will continue using, let your fishes' overall health, condition, growth rate and color be your guide.
(The red is mine) Want to know more about it? Google is your friend. I had never even heard of it before tonight.
NLS trumpets how it uses the whole fish in the meal while others use meal made from the less desirable parts of the fish etc. This is what that food site says about fish meals:
Let me open your eyes a little as to what "meals" are. Most of the "meals" that other manufacturers use are processed fish, shrimp, etc., that are ground up, dried into a powder and then put into dry storage on warehouse shelves for anywhere from a couple months to over a year before tropical fish food manufacturers order it to be mixed in with their foods. A lot of preservatives are added to survive the possible long shelf life. During this process much of the natural highly unsaturated fatty acids and natural proteins have been compromised and in fact, mostly lost. Once it is ordered and mixed into the manufacturer's other ingredients, additional preservatives are added to insure it doesn't go bad in their warehouse while they wait for your local store to order it. Once in your local store, it sits on the shelf waiting for you to purchase it. Pretty interesting, isn't it??
I think I will just stick with my variety of foods and feeding regimens based on my specific fish and their needs.