Bower, MG makes a 18-18-20 (I think that's the ratio) with micronutrients that's water soluble for tomatoes. I've had good luck with it in the past as well as the granular 9-3-6 with slow release because the granular has calcium and magnesium. That one I used at plant out. I am making a really conscious effort this year not to over fertilize because I always worry about lack of nutrients growing in a soilless mix. So far everything looks really healthy. The weather has been so nuts - now it's humid and of course cloudy. Anyways I'm hoping the Pro Mix works well because frankly I don't want to have to buy another fertilizer. Plus it was expensive!
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