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General Hydroponics KoolBloom (0-10-10) is an advanced bulking formula for the last two weeks of flower. This expertly balanced blend contains magnesium phosphate, potassium phosphate, potassium sulphate, which boost flower size, and speed up ripening. Liquid KoolBloom works with Rockwool, potting mix, coco coir, peat mix, soil, and hydroponics. It's so powerful that you'll only need small amounts to achieve impressive results come harvest time.
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🇺🇸 Ship from USA · On Agora since 2026
$21.80