Hi,
I have leopard corys and i've lost two suddenly overnight this week. Both with blood streaked scales and popeye. Does anyone know what this is caused by?
Water parameters: Ammonia 0, Nitrite 0, Nitrate 40ppm, ph 8, GH 17, KH 9. temp is 27c. Tank is 330 litres. Planted with bogwood.
Tank...