hey guys, I cant get a good picture but I am currently growing nirvanas northern lights and all of them have yellow bud sites....I watered with botanicare's cal mg and G.O's biothrive grow in veg and they were perfect.
When it was time to flower, I then started using Fox Farm's big bloom and calmg. I just completed my first week of flowering thursday and noticed the issue.
Ph is usually between 5.8-6.0 and I am using OC+ which is time released nutrients. I am thinking its a sulfur issue but never have I had a sulfer def. before with using the oc+ and big bloom. Just purchased somem dynagro protekt and used it yesterday for the first time. Here is a pic but its really hard to see whats going on under the HPS
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