Koi/goldfish offspring - 1st generation - spawning. Will eggs be viable? I've been told that Koi/goldfish mix offspring are sterile but mine are spawning with my true Koi. My very clean pond now looks like it has an oil spill covering the top of the water.
Also, I have fish that are about 4 inches long and they are acting like they are spawning. They may be 2 - 3 years old - at the most! Can they reproduce already? Thanks for the answers.
Also, I have fish that are about 4 inches long and they are acting like they are spawning. They may be 2 - 3 years old - at the most! Can they reproduce already? Thanks for the answers.