Limnobium Laevigatum from South America is a decorative floating plant that is particularly suitable for open topped aquariums. At 1-5cm tall and leaves from 5-15cm wide it is also good in traditional aquariums, because the fine, long and decorative roots provide protection to gourami's and other surface fish that like the roots of floating plants. If there are enough nutrients in the water and the light intensity is good, new leaves will appear above the water surface. It may become necessary to remove some to make sure that the plants beneath still get some light. When the nutrient level in the water decreases, it will grow much slower which makes it a great indicator of the available nutrients. Tropica 1-2-Grow Tissue Culture PlantsSmall plants with great success. Tropica 1-2-Grow are very young tissue cultivated plants grown in the Tropica laboratory. The plants are guaranteed to be free from snails, algae and pesticides and therefore are totally harmless for sensitive shrimp and fish. The 1-2-Grow range offers a unique range of plants. Success with your aquarium depends largely on the proper plant choice. Tropica 1-2-Grow plants offer a myriad of plants which can be divided into smaller portions to cover a larger area. Plants are compact from the start so you will experience dense and beautiful growth, if you provide them with the correct fertiliser and CO2 from the start. The range is perfect for small and medium sized aquariums. Tropica 1-2-Grow Directions Carefully remove the plant from the cup and rinse off the growing media. Split the plant as required into 6-8 portions using your fingers or sharp scissors. Plant portions into the substrate using tweezers. Then watch them grow!