I had them in a 100 gallon tank with lots of hiding spaces, flower pots, fake plants but neither of them wanted to hide. The female wanted to test the males strength and the male wanted to prove how strong he was. It doesn't look like it in the pictures but the female is much more massive than the male in terms of thickness of body and overall weight. As soon as I saw him starting to cower away, I moved him to a hospital tank for recovery.
Thanks for your concern, I'm sure he will be fine. I've been breeding Flowerhorns on and off for about the past 15 years and some pairs just love a good fight. It's the eye injuries that really concern me. I've also noticed that the koky females tend to be a bit more sassy. This female is now with another male and is currently showing spawning behavior. Matching smaller males to larger females has always been a challenge for my breeding projects.
Simon