This product as far as I can tell is one of the cleanest in regards to "filler" content that I have found for a reasonable price. The packaging is great although I do prefer the "cup" format I can live with the bag if I can get quality. My LFS sells their own brand in 1/2 lb size for 10$ and the ingredients are not so great, as with most others the second thing you see on the list is soy meal. I only just started feeding my fishie friends this product and they appear to like it, no noses turned up and I find less leftovers at the bottom. Here's hoping that I see great healthy results from this one! Highly recommend.