Why would Elos' dry food be "low" in PO4? What does "High quality and functional packaging which allows us to reduce the need for preservatives used by other brands that will indirectly add phosphates to your aquarium." actually mean? (The quote is from their web page.)
Why is Rod's frozen better than Ocean Nutrition or SF Bay? Basically the same reason, there's no added phosphates in the form of preservatives or binders.
I can't speak for the "high quality" packaging. It does come in a heavy foil pouch and a tin can with a screw on lid.
I can vouch for the need to feed less and improved water quality and that's all I care about.
Copied from ElosUSA:
Fish Nutrition
Elos SV fish foods are the finest fish foods in the world, used by top breeders in Europe and now available in North America. The SV range of foods is designed and produced without compromise. Elos was the first to add Beta-Glucans, proven to stimulate macrophages, specialized cells within the body of fish that check and control the pathogenic agents development. For top breeders this has provided a food that enhances a fishes' ability to fight off bacterial, viral and parasitic infections. Elos SV foods utilizes a post extrusion system that allows us to dramatically increase the Bio-availability of our food by infusing each pellet with extra vitamins and proteins that are normally wasted in a standard pellet/flake into the aquarium filter instead of the fish.
When you first see an Elos fish food, you will immediately realize it is different because of the package size and material. Each Elos SV fish food is packed in an aluminum can, with a sealed bag and measuring scoop inside along with detailed instructions. The standard size is 50 grams, which most think is very small until they begin to use Elos SV. Because of the very high conversion rate due in large part to the low temperature extrusion, the post extrusion process and high quality raw materials, we can feed our fish much smaller portions and see noticeable improvements in both the fish health and water quality. The packaging is also made of a tight fitting aluminum container, which preserves the Elos SV food much better than standard plastic containers. In most all other fish foods it is typical to use inorganic phosphates as a preservative and this is NOT used in the Elos SV foods. While these inorganic phosphates may do a good job of preserving their food, they also add unwanted phosphates into our aquariums, something that most aquarium owners try hard to avoid. Try Elos SV foods and see the difference.
