i must say, i do agree with mscaboo. it looks like your plant is thriving for nutes. looks like (i would say) you started them on a nute mix, and took the nutes away... or at least that was my problem

if you start with nutes in the water, you need to "ween" them off gradually or this will occur, you may want to try "fish emusion" or possibly fish oil, i have used the oil on one of my indica plants and it helped dramatically

anyways, GOOD LUCK