Jack's Professional 20-20-20 General Purpose Fertilizer Air Pumps | Multi-Outlet 'Harbor Blue' oyster (Pleurotus ostreatus)

'Harbor Blue' oyster (Pleurotus ostreatus) is a very productive commercial strain of blue oyster from Pennsylvania that fruits dense clusters with dark grayish-blue caps

Handles up to 720 GPH through 150 mesh (100 micron) stainless steel or poly screen element

day and week for accurate analysis of CO2 distribution

Contains a complete package of fully chelated micronutrients

HID Replacement:  1000 watts HPS/MH

Jack's Professional 20-20-20 General Purpose Fertilizer Air Pumps | Multi-Outlet 'Harbor Blue' oyster (Pleurotus ostreatus)Give your plants complete, balanced nutrition with Jack's Professional 20 20 20 General Purpose Fertilizer. This professional grade, water soluble fertilizer has been trusted by commercial growers, greenhouse operators, landscapers, and home gardeners for decades to support vigorous growth, lush green foliage, healthy roots, and outstanding overall plant performance. Featuring an equal balance of nitrogen, phosphorus, and potassium, along with a