Over the past few weeks, we have been sorting through all of the small koi that were being quarantined in our new Growout Greenhouse.  Now that the sorting is done, the real “growing out” has begun.  The water temperature is set for a nice, warm 78 degrees.  In each of the Polygeyser tanks, the koi have been grouped together based on size, then the koi have been weighed to determine the amount of food for optimal growth.  At the beginning of the trial last week, the koi were 6-8″.

Not only are these koi in growout, they are also part of a trial here at the farm.  We are testing different types of food to see how the various foods affect the growth of the koi.  We are only doing this trial in the Polygeyser systems so that the filtration is not a variable in our trial.  Each week these koi are weighed and measured, and then the food quantity is adjusted.  Because we are trying to acheive maximum growth through many small feedings throughout the day, it is imperative that the water quality is tested each day. 

Below are photos of some of the koi in our growout.