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High Nitrate Level for Koi
quality refers to both protein, fat and source of food (water based) and that the
overall balance of nutrients are specific for fish (not cats, dogs, birds, etc). that digestibility is specific for fish, not other animals. Ahhhh... that is the other part of the equation. Feed only as much as can be digested and USED by the fish.. that is the nitrogen is used to make proteins in the fish.. not pooped out because it was so embedded in a huge quantity, or in so much roughage and undigestible matter that it cannot be extracted in that "short trip" down the koi gut. you are right, they have short intestines... but, in the wild they have one of the highest food to mass conversions of all animals.. something like 2 lbs food to 1 lb muscle. one reason they dont NEED so much food, and definitely not much food at a time. cycle bacteria cycle thru to nitrates, which they cannot use. it is only anaerobic bacteria that can take nitrates and release as free nitrogen. altho plants use nitrates very well. Ingrid Offbreed wrote: I'm confused. Doesn't "high quality" usually mean "high protein"? Isn't protein high in nitrogen? Seems to me that feeding better food would actually increase the pollution problem, even if the quantity was reduced, due to the fish having such a short intestine (low food conversion efficiency). Of course, a "lower" quality food would have a higher roughage content and produce a different problem to be cleaned up. OTOH, bacteria attacking the undigested roughage should bind nitrogen, and reduce the nitrate problem, wouldn't it? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List Manager: Puregold Goldfish List http://puregold.aquaria.net/ www.drsolo.com Solve the problem, dont waste energy finding who's to blame ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Unfortunately, I receive no money, gifts, discounts or other compensation for all the damn work I do, nor for any of the endorsements or recommendations I make. |
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