Knowing these Tips for growing large heads of lettuce in Hydroponics can make you an avid gardener in no time. If you’re a new to growing lettuce through the Hydroponic Kratky method, it may seem intimidating to build a lettuce tray shelving unit, but this instructional guide takes you through the process step by step. Download Our Free PDF DIY Hydroponics Guide – Creating Kratky Method Lettuce Trays here –

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