100g Grotek Carbo Max$7.99 SKU: HP1081 Category: Hydroponics Tag: Fertilizer-Hydro In stock 100g Grotek Carbo Max quantity Add to cart Related products Hydroponics4L Nutri+Nutrient Bloom B $28.99 HydroponicspH Quickcheck Tester Nutri+ $46.99 Hydroponics4″ Air Stone Cylinder Aquafizz HAG-A970 $3.99