Aquarium plant from tissue culture in closed cup. Rotala wallichii is a demanding plant that develops red shoot tips in good light conditions. The most decorative effect can be achieved by planting a large number of stems in a group. Rotala walichii is good as background and midground plant and suitable even for small aquariums, because it is easy to prune if it grows too tall. CO2 addition boosts growth considerably. It also prefers soft, slightly acidic water.