{"product_id":"nutriculture-gro-tank-gt424-nft-kit","title":"Gro-Tank GT424 NFT Kit – Complete NFT Hydroponic System","description":"\u003ch2\u003eBare-root NFT growing for three to five plants, about 20 cm tall\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eNutriculture Gro-Tank GT424\u003c\/strong\u003e is a complete \u003cstrong\u003enutrient film technique (NFT)\u003c\/strong\u003e kit: a \u003cstrong\u003e45-litre\u003c\/strong\u003e tank with the NFT top tray sitting on it, a pump that runs around the clock, and a Correx top plate that holds your plants over a thin, moving film of nutrient solution. Roots grow out of their starter blocks onto the spreader mat lining the tray, where they have water, nutrients and oxygen at the same time, and whatever they do not take up flows straight back into the tank. Because plants are never under-fed or over-watered and salts do not build up in the root zone, NFT is known for fast root development and vigorous growth, with no growing medium to buy beyond the block each plant was started in. At \u003cstrong\u003e101 x 48.5 x 20.5 cm\u003c\/strong\u003e it suits \u003cstrong\u003e3 to 5 plants\u003c\/strong\u003e, from salad leaves and herbs to fruiting crops, and two kits sit side by side in a \u003cstrong\u003e1.2 x 1.2 m\u003c\/strong\u003e grow tent.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGro-Tank GT424 tank\u003c\/strong\u003e, 45 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGT424 NFT top tray\u003c\/strong\u003e (the growing channel)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCorrex top plate\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubmersible pump\u003c\/strong\u003e with air line and adjustable air valve\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDelivery tube\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpreader mat\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixings\u003c\/strong\u003e (plastic nuts and bolts, adhesive pads) and the \u003cstrong\u003eNFT instructions and grow guide\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns 24\/7 with no timer\u003c\/strong\u003e: the pump runs constantly, so there is no feed schedule to set or forget\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBare-root growing\u003c\/strong\u003e: the only medium is the starter block, which means less waste and less chance of disease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir drawn into the feed\u003c\/strong\u003e through the pump's air line, adding oxygen to the solution on every pass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow 20.5 cm profile\u003c\/strong\u003e that leaves the height of the tent for the plants and the light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 3x the yield\u003c\/strong\u003e of conventional soil growing, on Nutriculture's own figures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA proven design\u003c\/strong\u003e: the Gro-Tank NFT system was first launched by NUT Systems in \u003cstrong\u003e1976\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssemble:\u003c\/strong\u003e stand the tank level, sit the top tray on it with the access opening at the same end as the solution level marks, and fix the two together with the supplied nuts and bolts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFill a day ahead:\u003c\/strong\u003e fill the tank to the level marks \u003cstrong\u003e24 hours\u003c\/strong\u003e before planting so the water reaches room temperature and chlorine dissipates. Below \u003cstrong\u003e17°C\u003c\/strong\u003e, use a tank heater to bring it to about \u003cstrong\u003e18°C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump and mat:\u003c\/strong\u003e push the delivery tube onto the pump outlet, fit the air line, fix the pump to the tank floor with its suckers and pass the tube through the tray. Lay one layer of spreader mat along the tray, overhanging slightly into the tank, then switch on and check the mat soaks evenly; the vent on the pump adjusts the flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed and pH:\u003c\/strong\u003e add nutrients at the label rate, check EC, and hold the pH between \u003cstrong\u003e5.8 and 6.5\u003c\/strong\u003e, adjusting in small steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant out:\u003c\/strong\u003e transplant only once plants are root-bound, with plenty of white roots on the outside of the block. Remove any plastic wrap or pot, cut holes in the top plate and allow roughly \u003cstrong\u003eone plant per square foot\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain:\u003c\/strong\u003e top up with plain water, wait an hour, recheck EC and add nutrient back to target; check pH weekly; and empty the tank for a full solution change at least \u003cstrong\u003eonce a month\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e nutrient film technique (NFT), recirculating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 101 x 48.5 x 20.5 cm (L x W x H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 45 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant capacity:\u003c\/strong\u003e about 3 to 5 plants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump:\u003c\/strong\u003e submersible, runs continuously, with air line and valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimer:\u003c\/strong\u003e not needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended pH:\u003c\/strong\u003e 5.8-6.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowing media:\u003c\/strong\u003e starter blocks only (stone wool, compost or aeroponic cuttings)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTent fit:\u003c\/strong\u003e two side by side in a 1.2 x 1.2 m tent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaker code:\u003c\/strong\u003e NS-GT424\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eDo I need a timer for the pump?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNo. The pump runs 24 hours a day so the nutrient film never stops, and there is no feed schedule to set. Just keep the tank topped up.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow many plants will the GT424 hold?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNutriculture's rule of thumb is one plant per square foot, which puts the GT424 at around three to five plants depending on the crop. Smaller leafy crops and herbs can be spaced closer.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhat should I start my plants in?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eStone wool (rockwool) cubes or blocks, compost blocks or aeroponic cuttings all work. Transplant only once white roots show on the outside of the block, and remove any plastic wrap or pot so the roots can reach the air.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eHow often should I change the nutrient solution?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eTop up with water as the level drops and bring EC back to target. Empty the tank and start again with fresh solution at least once a month, checking pH after every change.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWorks Well With\u003c\/h3\u003e\n\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/grodan-rockwool-blocks\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/grow-media-3-6cm-hole-box-of-384-3-inch-7-5cm-grodan-rockwool-blocks-39901489758423.webp?v=1785293055\u0026amp;width=160\" alt=\"Grodan Rockwool Blocks\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGrodan Rockwool Blocks\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eStarter blocks to transplant into the tray\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/ph-test-kit\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Growth-tech-ph-test-kit-medium_landscape.jpg?v=1746904924\u0026amp;width=160\" alt=\"pH Test Kit\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003epH Test Kit\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eChecks the pH of the tank\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/growth-technology-ph-down\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/PH-Down-1L-medium_landscape.jpg?v=1746904406\u0026amp;width=160\" alt=\"Growth Technology pH Down 81%\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGrowth Technology pH Down 81%\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eBrings the pH back into range\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003ca href=\"\/products\/silver-bullet-roots\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/silver-bullet-roots--medium_landscape.jpg?v=1746905255\u0026amp;width=160\" alt=\"Silver Bullet Roots\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eSilver Bullet Roots\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eHelps keep the tank and roots clean\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Nutriculture","offers":[{"title":"Default Title","offer_id":53930890133770,"sku":"HYD-NUTR-009-01","price":98.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/nutriculture-gro-tank-gt424-nft-kit-default-title-1.jpg?v=1792279236","url":"https:\/\/hydrocropshop.co.uk\/products\/nutriculture-gro-tank-gt424-nft-kit","provider":"Hydro Crop Shop","version":"1.0","type":"link"}