Ludwigia is highly popular aquarium plant. You can grow Ludwigia without any problems. It grows well in all conditions, it is not requiring plant. Ludwigia has green or red leaves. When the light is high it has red leaves. You can plant Ludwigia in groups of several branches. It can be grown like floating plant. It can bloom and has yellow small flowers. Plants have not got roots , but there is no problem. Ludwigia gets new roots for a few days. Ludwigia doesn't need any special demand. Without CO2 it grows very well.