Potamogeton crispus : Live aquarium plant Potomageton crispus is richly branched and does not root too deeply. Leaves are emerald green brownish or reddish depending on the light and type of water. The stems are easily broken. The curly leaf distinguishes it from Potamogeton cheesman. Potomageton crispus Description pH range: 6.8-9.0 Temperature range: 18-28 C Water hardness:  medium  hard-hard Propagation:: From cuttings Habitat:   All around the world except South Read more