Also the light could be causing too much heat and condensation/humidity in the propogator, it's not a heated prop is it? I see it has vents on the top, sliding that open when it is hot/too warm should allow enough hot humid air to escape. Depends again how hot your ambient temps are. hope this helps some, i have had wilted clones many times through different reasons such as i have described above but if you rectify the heat issue and just keep them moist, not wet, they will most likely pull through.