Damn, that's some good-looking ludwigia!
Good example of how to have fun and get good results on a budget and small scale.
55gal - Coralife 4x65w cf, xp3, flourite, Hydor ETH300w, pressurized CO2 w/ rex(TM) reactor!
30gal - 55W AH, ecco 2232, flourite/gravel, DIY CO2 w/ Hagen ladder
3gal - endlers/cherry shrimp
4W cf, Red Sea deco nano, flourite