Killer Plant?!

I took a plant out my grow tent coz it was 1/3 the height with still no branches compared to the other 2 like trees (all white widow), which were all planted at same time. Also its leaves were very dark green with yellow, brown and a bronze colour blotted all over and they curled down, plus the plant gave off a horrible smell compared to the lovely distinct smell ushualy. I thought it was having an affect on my others, and since I took it out my other 2 white widow are much better and ready to start flowering, but my big bang babies havn't changed in days also seem to have took ages to get their fan leaves as it is. All when that plant was in the tent.
Does anyone know of anything this could be and how to maybe fix it?

Pics would be a great help. There isn't much we can do without them. Its kind of like calling your doctor about a rash and asking him to diagnose it on the phone, it isn't really practical. A picture is worth a thousand words. When you take the picture, use your cell phone camera, but take the plant AWAY from the HPS. The frequency of the HPS igniter causes some weird distortions like the ones in your avatar pic.

thegrownoob said:

Pics would be a great help. There isn't much we can do without them. Its kind of like calling your doctor about a rash and asking him to diagnose it on the phone, it isn't really practical. A picture is worth a thousand words. When you take the picture, use your cell phone camera, but take the plant AWAY from the HPS. The frequency of the HPS igniter causes some weird distortions like the ones in your avatar pic.

Click to expand...

I'll upload a pic tonight when a get home, I'll show a pic of other plant at same age so u can c what I'm talking about, its got me puggled.