Troubleshooting
Pygmy Rwandan Water Lily problems — and how to fix them
Pygmy Rwandan Water Lily (Nymphaea thermarum) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Algae overgrowth
The warm, shallow, calcium-rich water and bright light that this species needs also strongly favours algal growth; perform regular partial water changes and avoid overfeeding to keep algae in check.
Rhizome desiccation
The rhizome is extremely small and dries out rapidly if the substrate moisture level drops even briefly. Automated misting or a sealed humid terrarium reduces the risk of desiccation.
Prevent pygmy rwandan water lily problems before they start
Most pygmy rwandan water lily issues are care-mismatch, not bad luck. Dial in the basics:
Pygmy Rwandan Water Lily problems — FAQ
Why is my pygmy rwandan water lily algae overgrowth?
The warm, shallow, calcium-rich water and bright light that this species needs also strongly favours algal growth; perform regular partial water changes and avoid overfeeding to keep algae in check.
Why is my pygmy rwandan water lily rhizome desiccation?
The rhizome is extremely small and dries out rapidly if the substrate moisture level drops even briefly. Automated misting or a sealed humid terrarium reduces the risk of desiccation.