nute burn ?

hi all, me again :D
theres 20 outta 56 days left on this NLbigbud.
didnt start to feed them untill i started flowerin then i only used super thrive an biobizz bloom
started on 1 drop thrive to 5 liters ov water and 1ml per liter bloom
this for a week then i got sum topmax and grow (biobizz)

so from say week2 ov flowering i upped the dose slowly ,for the last cpl weeks i fed bloom 4ml /L grow 2ml/L and topmax 1ml/L + drop thrive .
fed every 3 days roughly ,,when the soil was well dry ..
so am i feedin to much ,????

IS this nute burn .not that long left on me 1st grow so it doesnt realy matter that much (stop feed in 5 days) but wud like to no for next time :rasta:

tia

*hope this makes sense to sum1 i r stoned as usual*

does not look like nut burn...
probably normal aging of the plant
I am gonna guess that these plants did not receive adequate light..

cfl's?

love

HMMMMMMM I'm growing the same stuff and now just got a problem:(