Nitrates and phosphates coming from fish and fish food has been the standard practice of the Europeans, Dutch, and Asians for quite some time now. It works great for them, and they always beat the Americans in the big contests.
Take a look at the majority of the published ADA specs and tanks, and they don't dose nitrates and phosphates. ADA does make their own nitrate + phosphate product, and they themselves don't use it on the majority of their high light, CO2 injected tanks.
It's the Americans who got behind the whole EI thing with "nitrates and phosphates don't cause algae, buy farm products and dump loads of them in." And it's always people following these techniques that have loads of problems.
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