My crypts are growing leaves with pretty severe curling on them. Image below. Anyone know what deficiency this is? Cryptocoryne Dewitt/Petchii (I have no idea which it is). The leaves are also very vertical.
The older leaves do that on my crypt. 'wentii'. I know phosphate def. will cause the leaves to turn red/purple on green plants. Curling is seen with chlorine exposure (usually on the younger leaves). That said, they look like they are planted pretty deeply. It may be a response to transplnting and not a deficiency at all.