Welcome to Tropical Fish Keeping forum.
Well, I guess I'll have to second AbbeysDad's suggestion, since I wrote those articles
. They will give you a good summary overview of a natural planted setup. "Natural" means low-tech, so no CO2, and thus less light needed. Substrates have pro's and con's with each, and plants will grow in any substrate, so that's up to you depending upon what you want in the way of fish and the tank's appearance.
On fish, we have fish and plant profiles here, second tab from the left in the blue bar across the top of the page. Or if the fish or plant name (scientific or common) is used in a post exactly as it appears in the profile, it will be shaded and you can click on it to see that species' profile information. Data on suitable tankmates is part of the info in the profile. The Snakeskin Gourami, Trichogaster pectoralis, is not yet in our profiles, so I would suggest other fish could include the larger danio and rasbora, medium peaceful barbs, loaches and peaceful catfish. This fish may swallow smaller fish, and as it might attain up to 12 inches, this has to be remembered. Most of the normally-available barbs, danio, etc. are in our profiles, these would be under Cyprinids.