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Nutrient Deficiency?

626 Views 5 Replies 3 Participants Last post by  Maclyri
Can someone help pin down this deficiency in my AR "cardinalis"?
I dose API CO2 booster and flourish iron and lights are on 7 hours a day.

They aren't holes, it's just loss of pigment in spots. It's not on all the leaves but each stem has at least one leaf with patches like this.


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I'm by no means no expert, but might be a potassium deficiency. Kn03 I think. Someone please correct me on this.

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I'm by no means no expert, but might be a potassium deficiency. Kn03 I think. Someone please correct me on this.

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Do you know any ferts that have potassium?


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Nilocg sells them on his site. His ferts will last you forever.

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You'll need some type of macro ferts basically.

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Looks like a macro deficiency to me.
KNO3 has potassium in it as well as nitrate, you'll need both. I would recommend going for an all-in-one fertiliser, Nilocg sells one, just easier that way. If you wanna have more control over your dosing you will need to get the seperate compounds e.g KNO3 and KH2PO4, and then find a regime to follow, like PPS-Pro or EI. But I think for your purposes an all-in-one will be fine


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Thank you guys!! I ordered his liquid micro and macro ferts


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