{"product_id":"biotabs-pk-booster-compost-tea","title":"BioTabs PK Booster Compost Tea","description":"\u003ch2\u003eA brewed, living organic feed for phosphorus- and potassium-hungry flowers\u003c\/h2\u003e\u003cp\u003ePK Booster Compost Tea is a concentrated dry blend of composted grape marc (wine production waste), composted manure, bat guano and kelp meal, carrying phosphorus-releasing and potassium-mobilising bacteria. Rather than mixing and pouring like a standard liquid feed, it's brewed: stir roughly 15g — about a tablespoon — into a litre of room-temperature, dechlorinated water along with 5ml of Orgatrex as bacterial food, then aerate with a pump for 24-36 hours to build up the microbial population before using it on the growing medium within about four hours of the aeration stopping.\u003c\/p\u003e\u003cp\u003eBioTabs list it among their organic flowering boosters, and it's aimed at soil and outdoor or indoor pot growers who want a genuinely biological route to bloom-stage P and K rather than a bottled mineral salt. Growers running a living-soil or no-till approach can also stir in a teaspoon of Mycotrex mycorrhizal inoculant half an hour before the brew finishes, and roughly a pint of finished tea is used per plant, poured onto the medium while keeping the tea moving.\u003c\/p\u003e\u003cp\u003eBecause it's a live product it needs a little more attention than a shelf-stable bottle — brewed tea only holds its potency for a few hours and should be made up in small batches with an aeration pump rather than stockpiled, and the compost itself may show natural mould in storage, which BioTabs note doesn't affect quality.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive, biologically brewed feed\u003c\/strong\u003e — aerated for 24-36 hours to build beneficial microbial populations before use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhosphorus and potassium from real biology\u003c\/strong\u003e — bat guano, kelp and composted grape marc carry P-releasing and K-mobilising bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairs with the wider BioTabs range\u003c\/strong\u003e — brew with Orgatrex as bacterial food, or add Mycotrex before finishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits living soil and organic set-ups\u003c\/strong\u003e — for indoor and outdoor pot or in-ground growing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcentrated dry blend\u003c\/strong\u003e — a little goes a long way once brewed into tea.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eContains: composted grape marc, composted manure, bat guano, kelp (seaweed) meal, P-releasing bacteria, K-mobilising bacteria\u003c\/li\u003e\n\u003cli\u003eBrew rate: approx. 15g per litre of dechlorinated water + 5ml Orgatrex (sold separately)\u003c\/li\u003e\n\u003cli\u003eAeration: 24-36 hours with an air pump before use\u003c\/li\u003e\n\u003cli\u003eUse within: approx. 4 hours of aeration stopping\u003c\/li\u003e\n\u003cli\u003eApplication: approx. 1 pint (568ml) of brewed tea per plant, poured onto the growing medium\u003c\/li\u003e\n\u003cli\u003eGrowing medium: soil — indoor and outdoor, potted or in-ground\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003cdiv class=\"hcs-dosing\" style=\"margin:32px 0 0;border:1px solid #e6e6e6;border-radius:12px;overflow:hidden;font-family:Montserrat,-apple-system,'Segoe UI',sans-serif;\"\u003e\n\u003cdiv style=\"background:#101010;padding:16px 20px;border-bottom:3px solid #efc04c;\"\u003e\n\u003cdiv style=\"color:#ffffff;font-size:17px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;\"\u003eFeed Chart\u003c\/div\u003e\n\u003cdiv style=\"margin-top:6px;color:#b8b8b8;font-size:12px;line-height:1.5;\"\u003eBioTabs PK Booster Compost Tea · soil · brewing rates for the tea\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;color:#2b2b2b;background:#fff;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003cth style=\"text-align:left;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;\"\u003eBrewing the tea\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 14px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 1 L\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 10 L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003ePK Booster Compost Tea, into dechlorinated water\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e15 g\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eOrgatrex, added as bacterial food\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e5 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e50 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#101010;padding:12px 20px;font-size:12px;color:#b8b8b8;line-height:1.6;\"\u003e\n\u003cspan style=\"color:#efc04c;font-weight:600;\"\u003eNote\u003c\/span\u003e — BioTabs publish the compost tea in grams, not millilitres — about 15 g is a tablespoon. Aerate with a pump for 24 to 36 hours, then use within about four hours of the aeration stopping. Roughly a pint (568 ml) of finished tea goes to each plant, poured onto the medium. Check pH and EC after mixing.\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BioTabs","offers":[{"title":"2kg (2.5L)","offer_id":53500715729162,"sku":"biotabs-pk-booster-compost-tea-2kg","price":54.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/nutrients-bio-tabs-pk-booster-compost-tea-29228511035576.jpg?v=1786377561","url":"https:\/\/hydrocropshop.co.uk\/products\/biotabs-pk-booster-compost-tea","provider":"Hydro Crop Shop","version":"1.0","type":"link"}