Substrate
I'm setting up a 5.5 gal low/med light planted betta tank with plants like anubias, buce, crypts, small swords, ferns, a few ludwigia sp. red, Lacustris), rotala caterpillar, lobelia cardinalis small form, dwarf sag. I use column ferts, root tabs and liquid co2.
Now I have a 36 gal gold fish...