Leaves Starting to turn yellow. Please help

Hey guys I need some advice here. Some of my leaves are turning yellow and I am not sure why. I just transplanted them into bigger pots please help.


2 4 foot fluorescent plant tube lights

looks like nute problem what are you feeding and do you ph your water

I feed them African Violet plant foot once but read its not the right stuff and no I do not ph my water.

get some good food for them alaskan fish emulsion works well on a budget fox farms trio works great but cost a little more just remember you get out what you put in. checking ph is a must you can feed the best nutes in the world if your ph is off your plants can't absorb it

Ok thanks for the help one more thing I am new at this so how do i check my ph.

What kind of soil did you use to transplant. If it's heavy and not fluffy, the roots will not get oxygen when wet and the leaves will die off

http://www.amazon.com/Luster-Leaf-Rapitest-pH-Meter/dp/B002NP0HJE
this is to test soil ph
http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?s=home-garden&ie=UTF8&qid=1321305649&sr=1-1
this is to test water and nutes
http://www.amazon.com/General-Hydroponics-7-0-Calibration-Solution/dp/B001D0CKYK/ref=pd_bxgy_ol_img_b
this calibrates the meter
http://www.amazon.com/General-Hydroponics-GH1514-Control-Kit/dp/B000BNKWZY/ref=pd_bxgy_ol_img_c
this adjusts the ph