^^^ My avatar fish looks similar to yours, CodeRed so at first I thought that was my betta! Haha. (But yours is a rose tail?) very pretty :)
Anyways, that tank looks super pretty!! I'll probably end up doing something like that in the future :D I love your colors and set up and everything! Usually divided tanks don't look that good (imo) but yours is very nice :]
Love the symmetry. If i were ya, I would move the plants around and spread them around middle, front and back of tank for more swimming excitement. Let him have some to weave in and out of. Love the tank though. I found when i divided past tanks that i did not like the blue of the divider so i put some black tape on the glass to block the view of it so it looked more uniform to the tank frame. COngrats on new fish. gorgeous