Yellowing 4 weeks flower any help

Plants are 4 weeks into flower, being fed 1.5ml bioblom per L water and .5ml topmax per litre, under a 250w led light ph is between 6.2-6.5, have some bioheaven and activera that I’m using as foliar spray. Leafs going yellow from tips is this normal for this age or can someone help me out, thanks

Do you not have the bio grow

joesoap2013 said:

Do you not have the bio grow

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Have that as well mate but started to fade it out over flower should I still use a bit?

Looks like N deficiency. The plant still needs N in flower. Esp during stretch

I use it the whole way with the bloom
In flowering I normally say near 2mls bloom 1ml grow
Used top max last time not sure if it made a difference if you have it use it
Wouldnt need to folier any more either
I wouldnt like

ProPheT 216 said:

Looks like N deficiency. The plant still needs N in flower. Esp during stretch

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Cheers mate will try up the grow and see how that goes

joesoap2013 said:

I use it the whole way with the bloom
In flowering I normally say near 2mls bloom 1ml grow
Used top max last time not sure if it made a difference if you have it use it
Wouldnt need to folier any more either
I wouldnt like

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Thanks mate will try adding a bit more see how that goes

Don't know what thier feeding schedule is now haven't seen it in a while
Used to be 1ml per litre grow whole
Way work up the bloom till 4ml per litre
Never ever got up to that much normally I just go 2
But just use half the ration of the bloom for the grow even

Hungry.. you still need nitrogen just alot less yellow wash usually a chlorophyll/ nitrogen def.