Fairy Moss (Carolina)
Azolla caroliniana — Small floating fern that fixes atmospheric nitrogen. Useful in low-tech tanks to reduce fertilizer needs. Turns reddish in high light. Very fast growing — needs regular removal.
WalstadBiotopeJungle
Care at a glance
| Scientific name | Azolla caroliniana |
|---|---|
| Placement | Floating |
| Light | medium |
| CO₂ | not required |
| Difficulty | easy |
| Growth | fast |
| Max height | 1" |
| Temperature | 65-82°F |
| pH | 5.5-7.5 |
| Tech | low |