{"product_id":"ionic-tonic","title":"Ionic Tonic","description":"\u003cp\u003e\u003cstrong\u003eIn stock now.\u003c\/strong\u003e Designed to be the most effective Cal-Mag product on the market.\u003c\/p\u003e\u003cp\u003eIONIC Tonic delivers calcium in three forms, including chelated for a rapid dose, with chelated iron to drive chlorophyll production. L-form amino acids aid recovery to full health, and seaweed extracts work against stress with natural growth enhancers.\u003c\/p\u003e\u003cp\u003eUse alongside any base feed. Unlike the base Grow and Bloom feeds, Tonic isn't a full nutrient on its own — it's a top-up, dosed differently depending on your growing medium and water type.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCalcium in three forms, including chelated\u003c\/li\u003e\n\u003cli\u003eChelated iron for chlorophyll production\u003c\/li\u003e\n\u003cli\u003eL-form amino acids that aid recovery\u003c\/li\u003e\n\u003cli\u003eSeaweed extracts against stress\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003e\n.hb-qff .hb-qff-row { display: grid; grid-template-columns: 140px 1fr; gap: 14px; align-items: baseline; margin: 0 0 10px; }\n.hb-qff .hb-qff-row:last-child { margin-bottom: 0; }\n.hb-qff dt, .hb-qff dd { margin: 0; }\n@media (max-width: 480px) {\n  .hb-qff .hb-qff-row { grid-template-columns: 1fr; gap: 3px; }\n}\n.hb-range-list { margin: 16px 0; border-top: 1px solid #ded6bf; }\n.hb-range-item { padding: 12px 4px; border-bottom: 1px solid #ded6bf; }\n.hb-range-item.hb-self { background: #f6f3ea; padding-left: 10px; padding-right: 10px; }\n.hb-range-name { font-size: 14.5px; font-weight: 700; color: #2f5f46; margin: 0 0 3px; }\n.hb-range-item.hb-self .hb-range-name { color: #262319; }\n.hb-range-does { font-size: 13.5px; line-height: 1.45; color: #262319; margin: 0 0 2px; }\n.hb-range-when { font-size: 12.5px; line-height: 1.4; color: #756f5c; margin: 0; }\n\u003c\/style\u003e\n\u003cdiv class=\"hb-qff\" style=\"background: #f1ede2; border: 1px solid #ded6bf; border-radius: 6px; padding: 18px 20px; margin: 16px 0 20px 0;\"\u003e\n\u003cdiv style=\"display: flex; align-items: center; justify-content: space-between; font-size: 10.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #2f5f46; margin: 0 0 14px; padding-bottom: 12px; border-bottom: 1px solid #ded6bf;\"\u003e\n\u003cspan\u003eQuick Feed Facts\u003c\/span\u003e\n\u003cspan style=\"color: #8a8570; font-weight: 500; letter-spacing: 0.06em;\"\u003eTHE HYDRO BROS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdl style=\"margin: 0;\"\u003e\n\u003cdiv class=\"hb-qff-row\"\u003e\n\u003cdt style=\"font-size: 11px; font-weight: 600; color: #756f5c;\"\u003eDilution \/ Dose\u003c\/dt\u003e\n\u003cdd style=\"font-size: 13.5px; line-height: 1.5; color: #262319;\"\u003e0.5ml\/L in soil and standard hydro; 1ml\/L in coco; 0.5ml\/L for one week only on hard water, where needed.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-qff-row\"\u003e\n\u003cdt style=\"font-size: 11px; font-weight: 600; color: #756f5c;\"\u003eWhen To Use\u003c\/dt\u003e\n\u003cdd style=\"font-size: 13.5px; line-height: 1.5; color: #262319;\"\u003eWeeks 6–10 in soil\/hydro; weeks 3–10 in coco; hard water only if a deficiency shows\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-qff-row\"\u003e\n\u003cdt style=\"font-size: 11px; font-weight: 600; color: #756f5c;\"\u003eSubstrate Fit\u003c\/dt\u003e\n\u003cdd style=\"font-size: 13.5px; line-height: 1.5; color: #262319;\"\u003eWorks alongside every IONIC base feed — \u003ca href=\"\/en-de\/products\/ionic-soil-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eSoil Grow\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-soil-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eSoil Bloom\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-hydro-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHydro Grow\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-hydro-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHydro Bloom\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-hard-water-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHard Water Grow\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-hard-water-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHard Water Bloom\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-coco-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eCoco Grow\u003c\/a\u003e and \u003ca href=\"\/en-de\/products\/ionic-coco-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eCoco Bloom\u003c\/a\u003e.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-qff-row\"\u003e\n\u003cdt style=\"font-size: 11px; font-weight: 600; color: #756f5c;\"\u003eGrower Notes\u003c\/dt\u003e\n\u003cdd style=\"font-size: 13.5px; line-height: 1.5; color: #262319;\"\u003eCoco growers should treat Tonic as routine from week 3, since coco is inert and doesn't hold calcium and magnesium the way soil does. Hard water growers should only add it where a deficiency actually shows — the Hard Water range is already built to handle hard water's own mineral content.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\u003ch2\u003eHow Tonic is used, by medium\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:16px 0;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;background:#f2f2f2;text-align:left;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;background:#f2f2f2;text-align:left;\"\u003eHow it's used\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eSoil \u0026amp; Hydro (soft\/RO water)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e0.5ml\/L, weeks 6–10 of the flowering schedule, as a routine top-up.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eCoco\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1ml\/L, weeks 3–10 — routine use from early veg right through peak flowering, since coco needs it more consistently.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eHard Water\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNot on the routine schedule. Use only where a recognised deficiency shows, at 0.5ml\/L for one week.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eGood practice\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdd products to the water one at a time, stirring between each. Never mix concentrates neat.\u003c\/li\u003e\n\u003cli\u003eKeep any stored solution covered — light in stored solution eventually means algae.\u003c\/li\u003e\n\u003cli\u003eMeasure every dose — eyeballing is where most feed problems start.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Ionic Range\u003c\/h2\u003e\n\u003cp\u003eIONIC is one system, twelve products — a dedicated Grow and Bloom feed for each growing medium, plus four boosters used across all of them. Here's the full range:\u003c\/p\u003e\n\u003cdiv class=\"hb-range-list\"\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-soil-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eSoil Grow\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eVegetative base feed for soil\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 1–5 of the grow cycle (soil)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-soil-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eSoil Bloom\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eFlowering base feed for soil\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 6–12; water-only flush in week 13 (soil)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-hydro-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHydro Grow\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eVegetative base feed for hydro on soft\/RO water\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 1–5 of the grow cycle (soft\/RO water)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-hydro-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHydro Bloom\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eFlowering base feed for hydro on soft\/RO water\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 6–12; water-only flush in week 13 (soft\/RO water)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-hard-water-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHard Water Grow\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eVegetative base feed for hydro on hard\/tap water\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 1–5 of the grow cycle (hard\/tap water)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-hard-water-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHard Water Bloom\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eFlowering base feed for hydro on hard\/tap water\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 6–12; water-only flush in week 13 (hard\/tap water)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-coco-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eCoco Grow\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eVegetative base feed for coco coir\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 1–5 of the grow cycle (coco coir)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-coco-bloom\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eCoco Bloom\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eFlowering base feed for coco coir\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 6–13; light feed continues right through to harvest (coco coir)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item hb-self\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003eTonic\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eCalcium \u0026amp; magnesium top-up that corrects deficiency\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 6–10 in soil\/hydro; weeks 3–10 in coco; hard water only if a deficiency shows\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-pk\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003ePK\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003ePhosphorus \u0026amp; potassium flowering booster\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 8–12, the heaviest-demand flowering weeks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-root-boost\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eRoot Boost\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003e100% organic root stimulant\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003ePropagation through early vegetative growth (weeks 1–4; weeks 1–2 in coco)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-range-item\"\u003e\n\u003cdiv class=\"hb-range-name\"\u003e\u003ca href=\"\/en-de\/products\/ionic-flower-boost\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eFlower Boost\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb-range-does\"\u003eBloom stimulant for yield and flavour\u003c\/div\u003e\n\u003cdiv class=\"hb-range-when\"\u003eWeeks 5–9, every week from first flower to mid-bloom\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ch2\u003eFAQs\u003c\/h2\u003e\u003cdetails\u003e\u003csummary\u003eDo I need Tonic with every IONIC feed?\u003c\/summary\u003e\u003cp\u003eNot always. It's a routine part of the coco schedule and the mid-flowering weeks in soil and standard hydro, but on hard water it's only needed if you see a deficiency.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat does Tonic actually contain?\u003c\/summary\u003e\u003cp\u003eCalcium in three forms, including chelated for a rapid dose, plus chelated iron, L-form amino acids and seaweed extract — it restores vigour and corrects the deficiencies that show up as yellowing or interveinal chlorosis.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use Tonic with any other nutrient brand?\u003c\/summary\u003e\u003cp\u003eIt's formulated to complement the IONIC range specifically — for best results, pair it with \u003ca href=\"\/en-de\/products\/ionic-soil-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eSoil Grow\u003c\/a\u003e, \u003ca href=\"\/en-de\/products\/ionic-hydro-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eHydro Grow\u003c\/a\u003e or \u003ca href=\"\/en-de\/products\/ionic-coco-grow\" style=\"color:#2f5f46;font-weight:600;text-decoration:underline;\"\u003eCoco Grow\u003c\/a\u003e and their Bloom equivalents.\u003c\/p\u003e\u003c\/details\u003e","brand":"IONIC NUTRIENTS","offers":[{"title":"300ml","offer_id":57211374862709,"sku":"12967","price":11.95,"currency_code":"EUR","in_stock":false},{"title":"1L","offer_id":57211374797173,"sku":"12965","price":26.95,"currency_code":"EUR","in_stock":true},{"title":"5L","offer_id":57211374829941,"sku":"12966","price":79.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0561\/9092\/7032\/files\/ionic-nutrients-nutrients-ionic-cal-mag-pro-calcium-magnesium-plant-supplement-1254942051.webp?v=1787105473","url":"https:\/\/www.thehydrobros.com\/en-de\/products\/ionic-tonic","provider":"The Hydro Bros","version":"1.0","type":"link"}