hi im new to the game guys)my seedlins are turning yellow help PLEASE....

i have a problem my plants are a week old and i just moved them under a 400 watt mh and now the leaves are turning yellow i have the lights 3 foot above the plants im using fox farm ocean soil and bat guano nutes PLEASE HELP ME.....

do you mean big bloom when you say your using bat guano? i dont think that would cause nute burn unless the mixture was too strong. im not sure what distance you keep a metal halide at but 3 feet sounds a little far, isnt hps at like 24inches? id try moving the light closer first and see how that goes. also id recommend using foxfarm's light warrior instead of ocean forest for your young plants, its always worked good for me. hope this helped.