Troubleshooting
Yellow Water Trumpet problems — and how to fix them
Yellow Water Trumpet (Cryptocoryne lutea) 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.
Crypt melt
Leaves dissolve shortly after planting or following large water-parameter changes. Trim affected leaves; the rhizome usually re-sprouts within 2-4 weeks.
Slow growth
Can take several weeks to establish. Ensure adequate root-zone nutrients with root tabs and stable lighting.
Algae on leaves
Older leaves accumulate algae under bright light. Remove heavily affected leaves and reduce light intensity or duration.
Yellowing leaves
Often indicates iron deficiency. Supplement with an iron-rich liquid fertiliser or additional root tabs.
Prevent yellow water trumpet problems before they start
Most yellow water trumpet issues are care-mismatch, not bad luck. Dial in the basics:
Yellow Water Trumpet problems — FAQ
Why is my yellow water trumpet crypt melt?
Leaves dissolve shortly after planting or following large water-parameter changes. Trim affected leaves; the rhizome usually re-sprouts within 2-4 weeks.
Why is my yellow water trumpet slow growth?
Can take several weeks to establish. Ensure adequate root-zone nutrients with root tabs and stable lighting.
Why is my yellow water trumpet algae on leaves?
Older leaves accumulate algae under bright light. Remove heavily affected leaves and reduce light intensity or duration.
Why is my yellow water trumpet yellowing leaves?
Often indicates iron deficiency. Supplement with an iron-rich liquid fertiliser or additional root tabs.