Still need more plants for the middle section, but I added all females:
Janey, Melusine, Delilah, Kira, Lilith, Hera and Peaches. So far the sisters are seeing who backs down, Melusine is also one of the possible "alphas". Janey will probably end up the middle, while Hera is actually the lowest so far... o_o Lots of tail slapping, some nipped fins, minor chasing. Dangerous shark waters!
Edit: Solved the bare middle section by weaving the long floating plant down, so that it does the middle and top section at once.
Also had to remove all the plakats, not but 10 minutes after introduction. -.- For reasons of causing major damage to each other
Melusine got her mouth bit, eye bumped, tattered caudal, and missing scales on her one side. Delilah (who colored up a lot more) has missing scales by her faceplate on her body, plus a scale just hanging there. Kira has the same thing. Yet the three crowntails and Janey are getting along fine with occasional flaring, sometimes nipping.