Ready for the worst part? Well, I heard some people hit the floor and others shouting at the top of their lungs, but hear me out. Female koi carry an egg mass that may be up to HALF of their weight. Eggs take an extreme amount of energy and oxygen to carry.
If they are being chased by males, they are using more resources and energy. If you have a problem with your water quality or not enough nutrition to go around, guess who is most likely to die first? So, to the lovely person in Southern California who just added 10 koi to a gallon tank, we are so sorry someone said this was okay. We have heard so many similar stories and it is heartbreaking.
This way your fish will end up more comfortable than cramped. So for measurement sake, the number you should have per gallon goes like this:. Harvey goes over the math in his head real quick he was a math major in college and it checks out. Sabrina and Harvey watch the flashing scales of their fish as they lazily swim around their new home. All 3 of them seem happy and healthy and the couple plans on helping them stay that way.
As then only the top water from the ponds will be going into the filter. So feeding heavily with cheap food means you need to keep a very low stocking density. This is not to say you should not feed the Koi. But rather if you want to feed heavily to get maximum growth and development you need to use only high quality foods. A pump can circulate the water around but if it does not break the surface of the water then it is not aerating the pond.
Luckily aeration is one of the easiest things to correct. An air pump with a few air stones or adding a waterfall will help. Another thing to keep in mind is during the warmer months the water will not hold as much oxygen and this is also the time the fish are eating the most so your bio filter needs to be at its peak.
The short answer is if everything is as it should be then a guideline would be the following:. Remembering the small fish will grow large..
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