The first one that lists your micro nutrients are just that, micro nutrients. Plants need NPK as macro nutrients. Those are nitrogen, phosphorous, and potassium. Plants need these nutrients in high quantity and the micros are needed at lower levels. None of your ferts contain phosphorous or nitrogen. Unless you have decent lighting and plant growth you may not need these as they result from fish food (phosphorous) and natural nitrate cycle from your bacteria (nitrates), but if you start noticing deficiencies you might want to dose them. There is plenty of members on here that sell ferts, I am wondering if they would be willing to ship to Australia, IDK what the legal ramifications are.
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