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Old 04-22-2005   #5 (permalink)
Arthur
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Join Date: Dec 2003
Posts: 169
Right on Mike.

No color enhancing food until getting ready for show. Read food labeling carefully: many food that don't advertise them contain them.

For best beni, water should be below 60ppm kH, with experience, some high-end koikeepers will keep it under 40ppm.

Nitrates, which accumulate rapidly in a closed system, can make more damage than is readily apparent: yellows shiro and beni. Keep it down with a good water exchange routine and a veggie pond (water hyacynths work great) that the pond water circulates through. Make sure to regularly shake the plants and remove the organic debris.

A deep pond (more than 6 feet) will provide the required shaded areas as the sun goes round (except in the tropics of course). In addition, for the middle of summer, even here in the Pacific Northwest, a BLACK shade cloth of 55-65% density helps. I have seen gosanke with sunburn: it is horrible, the whole skin peals off.

Most problems (other than genetic) affecting the quality of beni are with water quality, especially organic laden water. Exchange a lot of water or make sure the DOCs are pulled out.

Oh, the point Dick made is very true. I recently asked a Japanese breeder about pond loading with tosai. He responded that any more than 4-5 tons per tosai will cause excessive growth and loss of beni.

MIke: really did not mean to step on your 4 points, but thought a few more details might be helpful.
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