Buds and New Growth Tips Yellowing.

I think I have a problem. My plants are 2 to 2.5 weeks into flowering under a now 1000 watt HPS in soil. Everything was going almost too perfect until about three days ago. At this time I switched from a from a 400hps to the 1000, and I also added Canna's Boost 8ml/g( I have already been feeding my plants Bio-Flores 15ml/g & Cannazym 8ml/g since about one week before flowering them. Water about every 2 to 3 days). All my plants now are really light yellow on the new growth/ tips but i think it is working its way down.
I am having trouble PHing with all the nutes in the water and a droplet colour indicator system.
What Does this sound Like? wrong Ph, nute burn?
I know pics help, but my camera fucks up trying to capture anything under HPS lite, it displays vertical bars. weird.

thanks in advance. first grow, super nervous.

the bigger light is making the plant grow faster so it needs more nutes, as for the yellowing it might be that your using a fert with out enough N, even though the P is what really counts in flowering, to little N during flowering will keep the plants from growing as good as they could.

here are the pics. but why did All them yellow up. I also started misting them twice daily 3 days ago.

probably cause they are using more N for growth and it doesn't have enough.

makes sense. umm the the smallest one is a clone off the larger one and it is only like 2 weeks from being clipped. can i water all them with the same nutes? and is my nute mixture to be applied every watering?

you should never feed new clones that are younger then at least 1 month

you can add nutes with every watering but just make sure to read your ladies, they will tell you what they need, uniform yellowing = more N, Purple stems and dark green leaf edges= P. but just remember that your ph must be on or else it could lock out nutes. and flush every couple of weeks to remove salt build up.

FrostickZero said:

you should never feed new clones that are younger then at least 1 month

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oops well messed that up. but now just 6.0.

So for sure not a Ph prob tho?

okay. so I flushed all of them to be safe yesterday. I am going to purchase a digi PH meter today, but I guess I will go back to the regular schedule. From the looks of the yellowing, only on the tips what other problems could it be. the temps are always btw 65-75, with very very low humidity.

what kind of strain are you growing?
it looks like you didn't veg it and top it enough =/

It was a single seed I found in a really dank bag of what my connect called Afghan. But who knows? I FIMed it, probably incorrectly at its 6th node about 1.5 months ago.

they are just random seeds that i have found in really dank bags

im still learning what im doing so. first grow

thetexican said:

It was a single seed I found in a really dank bag of what my connect called Afghan. But who knows? I FIMed it, probably incorrectly at its 6th node about 1.5 months ago.

they are just random seeds that i have found in really dank bags

im still learning what im doing so. first grow

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well if you want some help growing with CFL tell me and I'll see what I can do