[Greggz]

It's very common. My Rainbows flash and spar every day. Seems to be more in the morning and early evening.

Now that I have been spending more time viewing my tank, I can say it's even more than I ever thought.

Is the Lacustris flashing to another Lacustris? Mine tend to spar mostly with their own kind.

Always interesting to observe, and the color display can be fantastic.

 

[Greggz]

Thought you might enjoy this. It's a couple of my old full grown Lacustris sparring.