A nice foreground plant is Blyxa japonica.

I used 24" for a reason, easy to cut those 48-49" MDF boards in 1/2:-)
I think most are fine with 24-36" height. I've worked on some very tall and deep tanks, hanging from the top of tank down in, 36" deep tanks with 36-60" front to back suck.

You cannot see what you are doing till you unhinge yourself and get out of the tank.

I love my 24" tweezers:-)

the shorter tank like 12-20" I typically sit on a bucket to work on the tanks with 24" stands.

Good idea to screw two 24" bathroom cabs together.

Regards,
Tom Barr