They are looking good imo but the Rusty spots idk. I had it on my first 5. Maby ph off it should be 6.1-6.5 🤔 if you use straight tap water, fill buckets and leave it a few days. It works with me. Also acti and heaven go like the biobizz schedule so 2ml/l in stead of 1.5 im a bit scared of the nitrogen so i think 1.5 grow is a lot but they are not looking they have too much N 👊👍 hope this helps a bit but like i said im pretty new myself in this 😅🤣 good luck ✌️
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