Leaves sagging down

[bellis]

I'm new to this forum and I'm a beginner. I started with hydroponic. I got two plants, both feeding from the same containers, same light, same nutrient. One is doing really well, but the other have the bottom leaves sagging down.
I would appreciate some advice.
thanks

PS I uploaded two pictures in the gallery, I try to upload it here

 

[bellis]

there are the two plants

 

[GhostFacePurp]

over watered/ under oxygenated./transplant shock. be patient

GFP