Lowryder

I have 4 Lowryders at 4 weeks old. 3 are fine and healthy looking but 1 has turned yellow and droopy and isn't growing anymore. All 4 have same water, same pots, same soil and obviously the same light - 400w hps. They were all from the same supplier in the same batch. I can't understand why 3 should thrive and 1 start to die - any ideas?

sometimes u just get a sick/bad plant... u could of had a build up of nutes in it... u should post a pic... and ur watering/feeding schedule... i.e. when u water.. how much... wat nutes/food u giving them...

o wats the temp?... do u have a fan.. yadda yadda yadda... more details the better... wat u did was basicly email a bunch of doctors and told them ur sick... and thats all... got to have deeeetails!