Hi everyone. I am about 4 weeks into my first grow and have learnt a heap from reading these forums.
I have been 2 White Label Skunk #1 in Canna Terra Pro soil under 600w MH and have been feeding exactly as per the attached chart using Biobizz Grow and Biobizz Root Juice. Watering about every 3 - 4 days (I haven't had much run off if any but using about 2l at a time in 18l pots).
The plant I am having problems with is 5 days older than the other one (I had a germination problem) and I have done some LST.
The plant has been growing really well but in the last week I have noticed some yellowing of the bottom leaves. I thought at first these were ones that had been touching the soil due to starting LST too soon but it has slowly spread to most of the plants. The 2 oldest fan leaves are almost entirely yellow. I have also notices a few of the stems going a bit purple.
I have been using a PH soil probe and it has been showing 6.5 in most places but one area was showing 5 today.
Given the PH drop i have just flushed with about 8l of clean water that has been sitting out for 48hrs (all watering has been with tap water that has sat for at least a day).
Keen for any tips - as the second one is looking perfect so don't want it to have any similar problems.
Not sure if I have N deficiency from not enough feeding, or maybe lockout due to too much feeding - or something else.
I cant seem to attach my images but you can see them here
appreciate any help
I have been 2 White Label Skunk #1 in Canna Terra Pro soil under 600w MH and have been feeding exactly as per the attached chart using Biobizz Grow and Biobizz Root Juice. Watering about every 3 - 4 days (I haven't had much run off if any but using about 2l at a time in 18l pots).
The plant I am having problems with is 5 days older than the other one (I had a germination problem) and I have done some LST.
The plant has been growing really well but in the last week I have noticed some yellowing of the bottom leaves. I thought at first these were ones that had been touching the soil due to starting LST too soon but it has slowly spread to most of the plants. The 2 oldest fan leaves are almost entirely yellow. I have also notices a few of the stems going a bit purple.
I have been using a PH soil probe and it has been showing 6.5 in most places but one area was showing 5 today.
Given the PH drop i have just flushed with about 8l of clean water that has been sitting out for 48hrs (all watering has been with tap water that has sat for at least a day).
Keen for any tips - as the second one is looking perfect so don't want it to have any similar problems.
Not sure if I have N deficiency from not enough feeding, or maybe lockout due to too much feeding - or something else.
I cant seem to attach my images but you can see them here
appreciate any help