So I just did a major water change and my Trimac started laying eggs. Her mate is a total tool, so I have to keep them divided - hopefully he can fertilize through the divider. Every time I let him in, they really go at it - eventually she starts to run and then he gets more aggressive and starts inflicting damage. He's about 6" and she's just a little less, so there is no where she can hide that he can't get to her. I'm trying to power feed him - will try again once he is a lot bigger and she can get away. Sorry for the drab colors - I have a thick coat of duckweed in this tank that turns everything green. I've got two kids that have never seen this before, so a great way to spend a Friday night - you can really see her tube, and she swims down to place on contact vs. dropping and letting them go wherever.