help!!! weird problem

ok so im not quite sure wat i did but my bottom leaves are turning light green yellowish dont kno why anyone kno??

anyone???????????????

thought it might have been over watering but i wasnt for sure dont remember over watering them

first thing always check that ph, not just what you put in but check what comes out the bottom. if ph is ever the problem its 1 of the eaiser things to fix. some people freak out and start dumping diffrent types of additives or they start cutting back on things. its ok for the bottom leaves to turn yellow. just make sure it dosent start making it way up your baby. i end up cutting a goog chunk of the growth at the bottom anyway. this helps increse circulation and also makes your baby focus there energy to the top cola or colas. remeber they are a weed, they can take some abuse they are very hardy. good luck with grow i`m on my second grow. i used to worry about every change but i have learned that some of the changes peolple freak out on are normal-peace

dont worry about the yellowing its normal. as long as the new growth isnt yellowing ur fine. looks like those plants could use more light what do u have them under?

i forgot to metion, when you transplant spend the extra cash on some good soil. if you use the soil you have make sure to add some perlit this will help unpac that soil and let them roots breath. it dosent look over watered. i would go and transplant soon. ocean forest is a good bran soil but a little expensive. i use pro mix and add extra perlite. you can add perlite to any of your soils. i add about 30% perlit-70% soil

sweet thanks.... i have them under a hundred wat each gonna add one more light though on thursday when i get paid other than that they grow just fine thanks for the input guys any other stuff id be more than willing to take in