I have 4 Gf's and 3 new Koi in my pond 3800g, I believe the GF I'm referring to is just a base Comet he/she is about 8"s in length and pretty stout. I noticed the other day it is getting a blackish hue instead of its solid orange. Any reason for this? It also seems they are exhibiting spawning behavior, all the GF's are rubbing up against one another, and the one that is changing to color has a small injury (Little chink on its side). Do GF's get agressive during spawning??
