{"product_id":"seachem-flourish-excel","title":"Seachem Flourish Excel","description":"\u003cp\u003e\u003cstrong\u003eLiquid carbon for lush, green plants, with no CO2 system required.\u003c\/strong\u003e Seachem Flourish Excel is a source of bioavailable organic carbon that your aquarium plants use to grow. Every plant needs carbon, usually from CO2, and Excel delivers it in an easy daily dose. Use it on its own in a low-tech planted tank, or alongside pressurized CO2 for even faster growth.\u003c\/p\u003e\n\u003cp\u003eRound out your dosing routine with \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-comprehensive-supplement\"\u003eSeachem Flourish\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-trace-planted-supplement\"\u003eFlourish Trace\u003c\/a\u003e, and browse our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003efreshwater plants\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eWhy Flourish Excel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBioavailable organic carbon\u003c\/strong\u003e that plants can use right away for stronger, greener growth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo CO2 system needed\u003c\/strong\u003e, ideal for low-tech planted tanks, and it also complements pressurized CO2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple daily dose\u003c\/strong\u003e straight from the bottle, with no equipment to install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps with algae\u003c\/strong\u003e, many keepers use it to discourage certain nuisance algae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eHow to Dose\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.95em;margin:4px 0 6px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#E3F2FD;\"\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:6px 10px;text-align:left;\"\u003eWhen\u003c\/th\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:6px 10px;text-align:left;\"\u003eDose\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eStarting out, or after a large (over 40%) water change\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e1 capful (5 mL) per 40 L (10 US gallons)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eOngoing maintenance\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e1 capful (5 mL) per 200 L (50 US gallons), daily or every other day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 10px;\"\u003eEach cap thread is about 1 mL for smaller tanks. Start on the low end and work up. Some sensitive plants such as Vallisneria, mosses, and Anacharis can react to higher doses, so ease into it if you keep them.\u003c\/p\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.95em;margin:4px 0 10px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#E3F2FD;\"\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:6px 10px;text-align:left;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"border:1px solid #BBDEFB;padding:6px 10px;text-align:left;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e100 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eNano and small tanks, or trying Excel out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e250 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eEveryday dosing on a mid-size tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e500 mL\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eLarger tanks and long-term value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:0.95em;margin:4px 0 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;width:38%;\"\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eLiquid organic carbon source for plants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e100 mL, 250 mL, and 500 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eFreshwater planted aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eCO2 system\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eNot required, works with or without one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eMaintenance dose\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e5 mL per 200 L, daily or every other day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #BBDEFB;padding:6px 10px;\"\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-comprehensive-supplement\"\u003eSeachem Flourish\u003c\/a\u003e for a full trace-element supplement.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-trace-planted-supplement\"\u003eSeachem Flourish Trace\u003c\/a\u003e for trace minerals.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-plant-pack-fertilizer\"\u003eSeachem Plant Pack\u003c\/a\u003e to build a complete dosing routine.\u003c\/li\u003e\n\u003cli\u003eBrowse our \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003efreshwater plants\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:14px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #1E88E5;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo I still need a CO2 system?\u003c\/strong\u003e\u003cbr\u003eNo. Flourish Excel supplies carbon on its own, so it is a great fit for low-tech tanks. If you already run pressurized CO2, Excel can complement it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much do I dose?\u003c\/strong\u003e\u003cbr\u003eWhen starting out or after a big water change, use 5 mL per 40 L (10 gallons). For ongoing maintenance, use 5 mL per 200 L (50 gallons) daily or every other day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it hurt my plants or fish?\u003c\/strong\u003e\u003cbr\u003eUsed at the recommended dose it is safe for fish and most plants. A few sensitive species such as Vallisneria, mosses, and Anacharis can be affected by higher doses, so start low.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFreshwater or saltwater?\u003c\/strong\u003e\u003cbr\u003eFreshwater planted tanks. Flourish Excel is a plant carbon source and is not used in saltwater aquariums.\u003c\/p\u003e","brand":"Seachem","offers":[{"title":"100 mL","offer_id":48098833957083,"sku":"455","price":5.99,"currency_code":"USD","in_stock":true},{"title":"250 mL","offer_id":48098827108571,"sku":"456","price":7.99,"currency_code":"USD","in_stock":true},{"title":"500 mL","offer_id":48098827141339,"sku":"453","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/0001_0456-flourish_excel-250_ml_1.webp?v=1767282641","url":"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-excel","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}