Flairform pH Up & Down Kit - For Hydroponics (250mL) varo__12 these pens offer a range

these pens offer a range of in-built measurement units

Easy to navigate menu to program and adjust settings

healthy roots should be visible emerging from the blocks

150mm x 450 mm (6")

Sunrise & Sunset Mode for up to 100 fixtures per controller

Flairform pH Up & Down Kit - For Hydroponics (250mL) varo__12 these pens offer a rangeIntroducing Flairform pH up & Down Kit For Hydroponics The working nutrient pH should be checked at the following times: 1. When first made. 2. After the addition of top up water or additives especially if either is highly alkaline. 3. In recirculating systems, pH should be checked on a daily basis because the uptake of water and nutrients causes pH to change. NOTE: It is best to adopt a pH maintenance regime that helps prevent pH from getting too