I think the point niko is (constantly) trying to make isn't don't fertilize, but that fertilization doesn't come from the water column (as it does with most planted aquariums) in nature. A nutrient rich, biologically active substrate is what he is trying to push, I believe. I really don't think there are too many natural bodies of water with the nutrient levels of my high tech ei tank in my living room, the ones that do are most likely polluted. |