{"product_id":"hy-gen-pk-top-up","title":"Hy-Gen PK TOP UP – Phosphorus and Potassium Supplement","description":"\u003ch2\u003eLift PK in the tank you already have\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePK TOP UP\u003c\/strong\u003e is a straight \u003cstrong\u003ephosphorus and potassium\u003c\/strong\u003e supplement for the flowering period. Demand for both climbs sharply once a plant switches, and a base feed mixed to a general chart is frequently the limiting factor rather than the light or the environment. This is the targeted correction: raise PK in a reservoir that is otherwise fine, in measured steps, instead of pushing the whole feed harder and burning the plant on everything else at the same time.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaises only phosphorus and potassium\u003c\/strong\u003e — no extra nitrogen at the stage where nitrogen should be falling away\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrects a live reservoir\u003c\/strong\u003e — adjust in place rather than tipping the tank and remaking it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent of the base feed\u003c\/strong\u003e — works alongside whichever base a grower already runs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteps rather than jumps\u003c\/strong\u003e — dose small, re-read, dose again; the safe way to raise a tank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo bulk sizes\u003c\/strong\u003e — sized for rooms rather than single tents\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFeeding Harder Is Not the Same as Feeding Right\u003c\/h3\u003e\u003cp\u003eThe instinct when flowering looks underpowered is to raise the whole feed. That lifts nitrogen as well, at exactly the point the plant wants less of it, and the result is dark, brittle leaves, tip burn and \u003cstrong\u003epoor nutrient uptake\u003c\/strong\u003e from a reservoir that is now simply too strong. Raising phosphorus and potassium on their own changes the ratio rather than the total, which is the actual objective. It also keeps EC headroom in hand, so there is somewhere to go if the plant does need more overall later.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlowering stage only\u003c\/strong\u003e — there is no case for it during vegetative growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlongside the base feed\u003c\/strong\u003e, never as a replacement for it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd to a mixed reservoir\u003c\/strong\u003e, circulate fully, then re-read rather than reading immediately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRe-check EC and pH\u003c\/strong\u003e after every addition — it moves both\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaise in small steps\u003c\/strong\u003e and give the plant a few days between increases\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStop raising\u003c\/strong\u003e at the first sign of tip burn and hold at the previous level\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e phosphorus and potassium supplement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurpose:\u003c\/strong\u003e raising PK in a live flowering reservoir\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage:\u003c\/strong\u003e flowering only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e all systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC and pH:\u003c\/strong\u003e both affected — re-check and correct after dosing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Hy-Gen","offers":[{"title":"5L","offer_id":53621331919114,"sku":"NUT-HYGE-011-01","price":87.49,"currency_code":"GBP","in_stock":true},{"title":"20L","offer_id":53621333360906,"sku":"NUT-HYGE-011-02","price":311.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/hy-gen-pk-top-up-5l-1.png?v=1788432636","url":"https:\/\/hydrocropshop.co.uk\/products\/hy-gen-pk-top-up","provider":"Hydro Crop Shop","version":"1.0","type":"link"}