Aquariums: Would this work?

Going to most likely be using my 24 gal (90L) for this, or possibly my 40.6 gal (154L)

Temp would be at 24°C

Tank would be heavily planted with all red plants, and aqua soil.

Red root floaters

Multiple hides

Sponge filter

Tunnels for the betta

What colour sand should I get?
-black
-mix of beige+brown-ish
-beige
-white