Are you using CO2? I don't see any bubbles so I'm wondering if you might have a reactor or something? How long has the tank been up and running? Are you using any ferts?Like other species of Tonina, this is not a beginner’s plant. It requires moderately soft water, with a mildly acidic substrate. The species needs a lot of light (1 watt+ per litre,) and CO2 injection. A good supply of iron and micronutrients is important, and the nitrate and phosphate levels must never be allowed to fall to zero.
how much are you dosing for micro? (high non fe micro might cause this) and how soft is water.Any ideas? It happened in one Day. Rest of plant doing well. Maybe someone has thesame issue?