Howdy all - quick question: I won a platinum nute pack from Cyco in a raffle 
Can I use that with a current grow in Fox Farm's Ocean Forest? I've read that ffof has enough nutes to last a while but I'm in the middle of Week 6 of veg and haven't added a thing. My plants look good (I think) but some are lighter green up top and there are a couple random lower leaves with some spots that look brown. Is it safe to start using this nute pack, following the directions and diluting a bit?
Here is a pic of my ladies from last night

Can I use that with a current grow in Fox Farm's Ocean Forest? I've read that ffof has enough nutes to last a while but I'm in the middle of Week 6 of veg and haven't added a thing. My plants look good (I think) but some are lighter green up top and there are a couple random lower leaves with some spots that look brown. Is it safe to start using this nute pack, following the directions and diluting a bit?
Here is a pic of my ladies from last night

