Troubleshooting
Madagascar Lace Plant problems — and how to fix them
Madagascar Lace Plant (Aponogeton madagascariensis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Leaves dissolving or blackening
Usually caused by warm water (above 24°C), high nitrates, or bacterial infection; cool the tank, increase water changes, and remove affected leaves promptly.
Algae colonising leaf skeleton
The open lattice is impossible to clean; prevent algae by keeping nitrates low, limiting photoperiod to 9-10 hours, and adding Nerite snails.
Premature dormancy
Triggered by temperatures above 22°C or water quality decline; cool the tank gradually and improve water change frequency.
Bulb rot after dormancy
Overwatering during dormancy storage or replanting into dirty substrate; treat cut surfaces with potassium permanganate before replanting.
No new growth after dormancy
Ensure bulb is firm and shows at least one growth point; replant in fresh substrate and drop temperature to 18°C to stimulate sprouting.
Prevent madagascar lace plant problems before they start
Most madagascar lace plant issues are care-mismatch, not bad luck. Dial in the basics:
Madagascar Lace Plant problems — FAQ
Why is my madagascar lace plant leaves dissolving or blackening?
Usually caused by warm water (above 24°C), high nitrates, or bacterial infection; cool the tank, increase water changes, and remove affected leaves promptly.
Why is my madagascar lace plant algae colonising leaf skeleton?
The open lattice is impossible to clean; prevent algae by keeping nitrates low, limiting photoperiod to 9-10 hours, and adding Nerite snails.
Why is my madagascar lace plant premature dormancy?
Triggered by temperatures above 22°C or water quality decline; cool the tank gradually and improve water change frequency.
Why is my madagascar lace plant bulb rot after dormancy?
Overwatering during dormancy storage or replanting into dirty substrate; treat cut surfaces with potassium permanganate before replanting.
Why is my madagascar lace plant no new growth after dormancy?
Ensure bulb is firm and shows at least one growth point; replant in fresh substrate and drop temperature to 18°C to stimulate sprouting.