Troubleshooting
Hygrophila corymbosa problems — and how to fix them
Hygrophila corymbosa (Hygrophila corymbosa) 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.
Leggy stems and leaf drop
Insufficient light makes stems stretch and shed lower leaves; raise light levels or top-and-replant to maintain bushy form.
Nutrient-deficiency holes/yellowing
Pinholes and yellow lower leaves indicate potassium or nitrogen shortfall in this heavy feeder; increase dosing and add root tabs.
Outgrowing the tank
Its size and speed quickly fill a small aquarium and shade neighbours; trim regularly and give it space in a larger tank.
Emersed-to-submersed melt
Plants grown emersed often melt their leaves when first submerged; keep stems healthy and new submersed leaves will replace them.
Prevent hygrophila corymbosa problems before they start
Most hygrophila corymbosa issues are care-mismatch, not bad luck. Dial in the basics:
Looking for hygrophila corymbosa in general rather than its problems? Read the full hygrophila corymbosa care guide — light, water, soil and feeding.
Hygrophila corymbosa problems — FAQ
Why is my hygrophila corymbosa leggy stems and leaf drop?
Insufficient light makes stems stretch and shed lower leaves; raise light levels or top-and-replant to maintain bushy form.
Why is my hygrophila corymbosa nutrient-deficiency holes/yellowing?
Pinholes and yellow lower leaves indicate potassium or nitrogen shortfall in this heavy feeder; increase dosing and add root tabs.
Why is my hygrophila corymbosa outgrowing the tank?
Its size and speed quickly fill a small aquarium and shade neighbours; trim regularly and give it space in a larger tank.
Why is my hygrophila corymbosa emersed-to-submersed melt?
Plants grown emersed often melt their leaves when first submerged; keep stems healthy and new submersed leaves will replace them.