Thanks Les, I'm going to have the glass cut at the shop, whenever I cut stuff it is always skew-if no matter how many times I measure.
The tank will be both display and functional, I'm going to try your idea with the vertical branches, if I get a light I will grow broadleaf chains word on the bottom. The tank size I am looking at is a 45cm cube, lots of room for a pair I think I will need 4mm glass. But will double check, have already found the calculators.
I was thinking of practicing on making tanks for my inverts, that way if they leak it's no biggie but I will also try betta cubes thanks Les
They ate all the babies on the apon but I found a second teeny patch on a crypt leaf with around 20 wrigglers on it. They are being great parents.
On a side not, I have started calling these philapean blues as the breeder who discovered this fish intended for them to be called that.