it loves high light, co2 and a rich soil plus ferts. with med light (2.4wpg), min c02 and no ferts, in a 15g, it grows pretty slowly (this is my CRS tank so plant growth is not the goal). in my planted 120g with high light, co2 and daily ferts, it grows like a weed. both use ada aquasoil. tried it in a low tech tank without ferts and co2 and it didnt grow at all.