Active Aqua Submersible Water Pumps Size:400 GPH it is important to note

it is important to note that it should never be combined with concentrated calcium and magnesium supplements

Silicon strengthens cell walls

Versatile Compatibility: Seamlessly integrate with any growing system and nutrient line

not a chemical or an ingredient

Active Aqua Submersible Water Pumps Size:400 GPH it is important to noteChoose a pump that was built to go below the waterline! Active Aqua's entire collection of pumps complete any grow setup, but for hydroponic systems, you can't beat the submersible line. All of Active Aqua's submersible pumps include multiple hose fittings so you get an exact fit every time. Each pump's powerful mag drive construction includes removable foam filters, impellers, rubber mounting feet to reduce vibration, and a 6 foot heavy duty power