| Than ks!
Okay, you have half as many fish in twice as much water, so the stocking density of koi is about one fourth what I am currently running in my indoor koi pond for the Winter. Of course in the Summer season, these fish are spread out to both the inside and outside koi ponds to drop my stocking density by a factor of two, then I am only double the koi stocking density you run. I also change more water in the Summer, more like 15 to 20% per week in the outdoor koi pond.
With comparatively 4 times the fish load, and 1/4 the water exchange rate, I am effectively running a system with 16 times the demand on the filtration system currently to keep ammonia, nitrites, nitrates, and pheromones in the ranges for good koi health than you run. Certainly I am not alone in this problem!
Now I understand why my trickle towers are so much bigger than the ones I see in your pictures. In theory you could run 16 times less filtration capacity to achieve the same water quality.
I appreciate the answer to the question, that explains a lot of what you write, and helps me understand your view on filtration and water quality much better.
Again, thanks for the explanation and data, it is helpful.
|