The veins are turning brown on my aquatic Amazonian sword plant’s leaves, making them crinkle. However, the leaves are a lovely shade of green and seem more or less healthy. Is there not enough light? Because I only have a normal output fluorescent bulb.
I use root tabs for iron supplement and fertilizer. The roots are healthy, and the leaves seem to have plenty of chlorophyll. The CO2 is sufficient. My tank isn’t overcrowded (3 swordtail fish and 2 angel fish) nor is anything else unhealthy. No snails.
My tap water has medium-high pH, a good buffer (high alkalinity–not related to pH), and high hardness. I mix this 50/50 with reverse-osmosis water, which has any dissolved materials filtered out.
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