PondMAX 12V Outdoor Transformer 30VA bowl-trimmers If you follow the label

If you follow the label directions of Grow Micro & Bloom they will keep the pH of your nutrient solution stable within a range optimal for nutrient uptake for one week

One of the most important aspects of your garden is the nutrients added to the system

water-logged air that encourages plant-killing molds and fungus gnats

and mix well

PondMAX 12V Outdoor Transformer 30VA bowl-trimmers If you follow the labelThe PondMAX transformers have been manufactured with advanced technology to provide you with the best power source for your water garden products. These outdoor rated transformers come with screw together weatherproof connectors that eliminate any tedious wiring. Output voltage and power shown in Volt Amps (VA)= equivalent to watts. Features 30 va 2500ma Outdoor rated Suitable for most 12v equipment Specifications Volt Amps (VA) 30 Power (W) 20 Max