Tough to see much detail under blue light, but I would still consider separating the two clowns. Also, I neglected to mention - wiht the water changes, you'll of course need to redose a proportional amount of copper. Is the water hazy, or is that just a function of the blue lights?
Water is clear, the blue lights/video is from my DT tank on the night I got them. I was mainly posting that to show you that initially they were much closer in size than they seem now. It's also a bowfront which causes distortion depending on the angle you are looking. It was a really cool looking tank, but if I did it again, I'd buy a flat one- hate having to move to a certain angle not to have things distorted.
They are in 10 gallon QT tank now, it just has "normal" lighting.
And yes, I had thought about having to re-add the copper power and get the correct concentration. I had purchased some different size syringes, so hopefully that will help me with the dosing.