I ended up with a 29g tank instead of the 20 I originally intended... 
I was thinking of using Flourite as substrate but that much of it will be really expensive, so instead I wanted to mix it 50/50 with something else, but I'm not sure what else to use or where to get it.
I'm also not quite sure how much substrate total I'll need, or how deep it should be? The tank is a 30" long rectangle one.
I'm hoping to be planting some of the "easy" plants that get repeatedly recommended here (java fern, hornwort, anacharis, anubius, etc).
Any advice is greatly appreciated!
I was thinking of using Flourite as substrate but that much of it will be really expensive, so instead I wanted to mix it 50/50 with something else, but I'm not sure what else to use or where to get it.
I'm also not quite sure how much substrate total I'll need, or how deep it should be? The tank is a 30" long rectangle one.
I'm hoping to be planting some of the "easy" plants that get repeatedly recommended here (java fern, hornwort, anacharis, anubius, etc).
Any advice is greatly appreciated!