Definition of continuance for English Language Learners. : 1  the act of continuing for a long period of time. : 2  the period of time when something continues. 3  law : a legal decision that a court case will continue at a later date.
Some years they spawn once or twice in spring. Some years they spawn on and off all summer. One year none of them spawned that we know of. I think that was the year 2002. My koi do not eat their fry and now that they're getting large they ignore most of the eggs as well.
The fish have plenty of things to nibble on in the pond, and the more you feed the fish, the more waste they will produce. The only time you have to feed your koi is when a new pond is installed, because there is no algae for the fish to eat. Also you must feed your koi fish less in the wintertime (depending on your area).