They are in shock at the moment most likely, you can tell they are going to need a perfectly balanced enviroment to recover then you will see new growth start to happen.
I say they are in shock because they really dont look well, I mean they really could use some lovin if you know what i mean.
Try hand watering them every day instead just once, the rockwool retains enough moisture not to need to use you hyrdosystem automatically yet.
this will help the roots spread in search of water and in turn help the plant recover faster.