More info
Datasheet
| Aquarium Compatible | yes |
| Plant Outdoor | yes |
| Plant Emersed Growth | no |
| Plant Growth | very fast |
| Temperature Tolerance | 4°C / 39.20°F - 30°C / 86.00°F |
| Temperature | 20°C / 68.00°F - 27°C / 80.60°F |
| Carbonate Hardness | 2-21 kh |
| pH Value | 5-9 ph |
| Light | low-high |
| Carbon Dioxide (CO2) | 5-40mg/lmg/l |
| Nitrate (NO3-) | 10-50mg/lmg/l |
| Phosphate (PO43-) | 0.1-3mg/lmg/l |
| Potassium (K+) | 5-30mg/lmg/l |
| Iron (Fe) | 0.01-0.5mg/lmg/l |
General Description
The aquatic plant Hydrilla verticillata, also known as Water thyme, is a variable species with numerous different-looking forms. Its stems can grow up to two meters in length and ramify moderately. This plant can be easily mistaken for waterweeds of the genera Egeria and Elodea. It has whorls of 3-9 leaves on each node, with a serrated leaf margin that is noticeable to the naked eye. Hydrilla verticillata is a fast-growing species that can survive unfavorable conditions by producing subterranean sprouts with tuberous turions at their ends.
Aquarium Suitability
Hydrilla verticillata is considered very easy to maintain in an aquarium setting. It is suitable for background placement, and its fast growth rate can contribute to a lush aquatic environment. It is occasionally available commercially and can tolerate a wide range of water conditions, as indicated in the provided table.
Demands and Hardiness
The Water thyme can withstand somewhat colder temperatures but caution should be exercised. It requires a moderate level of carbon dioxide (CO2) and nutrient levels, along with a varying range of lighting conditions. It can thrive in temperatures between 20-27°C and has a temperature tolerance range of 4-30°C. For detailed water parameter requirements, refer to the provided table.
Aquascaping & Usage
Due to its fast growth and background placement suitability, Hydrilla verticillata is ideal for aquascaping projects where a dense, lush appearance is desired. Its variable forms and whorls of leaves can add texture and depth to the underwater landscape.
Propagation
Propagation of Hydrilla verticillata can be achieved through fragmentation, runners, and cuttings. This plant's ability to produce new shoots and turions allows for easy propagation in both aquarium and outdoor pond setups.
Habitat and Distribution
The main areas of distribution for Hydrilla verticillata are in temperate-tropical climate zones of Asia, Australia, Eastern Africa, and parts of Europe. However, due to human activity, this plant has been introduced to almost all regions of the world. In the USA specifically, it is considered an invasive aquatic weed that competes with native plant species, establishing itself aggressively in various aquatic habitats.