Hello,
I have noticed something with my crypts that i havent noticed in other aquatic plants ,but is common with my land plants. It is that they raise and lower their leaves throughout the day. When the light first comes on the leaves are laying very parallel to the ground and as the day progresses they will raise their leaves up towards the light. I havent noticed any of my other plants doing this.
Could this be a cry from the plant that it needs more light? Is this a normal thing crypts do?