Join Date: Oct 2010
Location: Victoria, Australia
While I prefer live over fake, your fish won't know or care either way. Don't worry about what members of r/Bettafish think.
If you're more comfortable using silk plants in your tank, use them.
I have a brown thumb when it comes to live aquarium plants, and there's only three species of plants I keep in my tanks. These plants receive no artificial lighting (it's very dark in most of my tanks because this is what my fish prefer), and no fertiliser.
These three plants are: Anubias, Java Fern, and Java Moss.
Anubias and Java Fern can be left to float. Otherwise, they can be grown with their roots buried in the substrate (you don't bury the rhizome as this can cause it to rot) or using some fishing line or cotton, you can attach them to pieces of driftwood, rock, or even ornaments.
Java Moss can be tied down in a similar manner, or can be left to grow as it likes.
You can use whatever substrate you prefer with these plants. Personally I prefer using sand over gravel in my fish tanks.