Join Date: Jul 2007
Location: St. Petersburg, FL
You should be fine with you plant choices. Low-light plants can grow in high light too, but anubias will likely be more prone to green spot algae. Windelov Java fern would be a relatively small fern to put in the tank. They grow pretty slowly, but eventually it would probably get too big.
With 22 watts of light on a 20 liter tank that is only about 1watt/liter, not 2watts/liter. I think 2watts per liter (40watts) is too much. You could even try using just one light and turning the other on for a few hours in the middle of the photoperiod to give a "noon" burst.
I would start out with around 10 red cherry shrimp. They will probably breed anyways and then you'll end up with more.