Have a slight issue, believe it to be Nitrogen Deficiency.
Plants are Purple Haze (unsure if fem or not), Pure Kush (fem), Gold Leaf (Fem/Autoflower)
They are all about about 7-8 weeks old.
Have been using the Flower Power Fertilisers that were sent to me with the starter kit, last time I fed was on Wednesday.
Usually water once a day/2 days if not needed.
PH is sitting around the 6-6.5 mark, have been testing water before watering.
Currently under a 600W MH light at around 1.5m high. Was previously under a 600W HPS light that was only changed last week (realised I was using the HPS instead of the MH)
Currently in a 1x1x2m grow tent.
Anyone have any suggestions? Is it Nitrogen Deficiency or something else? What should I do?