WHAT DOES KOI FISH POND KIT MEAN?

I’ve never owned a koi betta before and I had been asking yourself if it’s typical for them to change colors quick? I’ve experienced my Galileo for nearly two weeks and in that time he’s gotten darker and is now shifting to get lighter.Dec 30, 2016 #7 I had a female for months, yellow koi, she did not change a lick. Crimson is much more ver