I have 4 seedlings that are 2 weeks old on Saturday but 2 are basically double the size of the 2 I'm worried about I've noticed one of the smaller ones having a slight droop so I've fed a tiny bit of distiller water into both smaller ones, this is a pic of the setup and the 4 from the top, what could be wrong as the temperatures are always between 25 and 27c cfl 125watt light on 24 hours with intake, I've not yet put an intake in but I can't see that being the problem