Autoflower deficiency

Hey guys. First time trying autos. Usually a photo grower. I’ve got a couple of plants displaying symptoms. It’s gelato auto. Approx 20 days old. EC 1.2, full strength Cal mag. AN rhino 2ml. In Coco. They are just space fillers during a photo grow but I’ve dropped 2 600 hps over them and will accommodate them with more lights as they out grow.

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I’ve just noticed mild tip burn when I removed the leaf. It’s not right through many of them so this could contribute. Suggestions on autos would be appreciated

I’m also doing banana n cheese. Cheese was dissapointing from the start so they are not much expectation for them. Out of 10 , 3 germef and they were weak little mutants to begin with. Bananas are smashing along