{"product_id":"green-planet-ph-down","title":"Green Planet pH Down","description":"\u003cp\u003eTap water straight from the hose, a reservoir that's just had its nutrients mixed in, a solution that's crept upward over a few days of feeding: any of them can leave pH sitting higher than your plants want. Green Planet pH Down brings it back down. It's a highly concentrated acid that lowers the pH of a nutrient solution and helps keep it there. Green Planet call it a clean, premium formula for lowering pH safely, and it's made for use through vegetative growth and flowering alike.\u003c\/p\u003e\u003cp\u003eWhy does pH matter so much? It measures how acidic or alkaline something is on a scale of 0 to 14, with 7 as neutral. Each nutrient has a band where roots can take it up easily. Outside that band, the nutrient can be sitting right there in the tank while the plant goes without. Iron and manganese are the classic examples. As pH climbs, roots struggle to absorb them, and the newest leaves start to pale even when the feed on paper is complete. Green Planet point out that plants grown outside the optimal range show slower growth and nutrient deficiencies. That's the lockout a properly adjusted solution avoids.\u003c\/p\u003e\u003cp\u003eYour water source is usually the first culprit. Many mains and bore supplies carry dissolved carbonates that push pH up and resist change. The nutrients you add shift it as well. Then there's the scale itself, which is logarithmic: one full point of pH is a tenfold change in acidity. A concentrated acid moves a reservoir a long way with very little product, which is why pH Down goes in by the drop, not the capful.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e pH Down is a concentrated acid. Wear gloves and eye protection when handling it, and never mix it with pH Up, bleach or peroxide.\u003c\/em\u003e\u003c\/p\u003e","brand":"Green Planet","offers":[{"title":"500 ml","offer_id":67494104957086,"sku":"9327921001475","price":22.49,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/5261\/6094\/files\/Green_Planet_pH_Down_500ml.png?v=1793762364","url":"https:\/\/www.hydrooasis.com.au\/products\/green-planet-ph-down","provider":"Hydro Oasis","version":"1.0","type":"link"}