{"product_id":"marble-queen-radican-sword-echinodorus-cordifolius","title":"Marble Queen Radican Sword (Echinodorus cordifolius)","description":"\u003cdiv style=\"background:#E8F5E9;border-left:4px solid #2E7D32;padding:10px 14px;margin:0 0 14px;font-size:0.95em;\"\u003e\n\u003cstrong\u003eIn-store pickup only.\u003c\/strong\u003e Your order is reserved, we hold off on bagging until you arrive so it stays healthy in its display tank.\n\u003c\/div\u003e\n\u003cp\u003eThe Marble Queen Radican Sword (\u003cem\u003eEchinodorus cordifolius\u003c\/em\u003e 'Marble Queen') is a bold, easy-care centerpiece plant with broad, heart-shaped leaves splashed in creamy marbled variegation. It grows into a large, dramatic specimen that anchors the midground or background of a tank, and it is forgiving enough for beginners while still rewarding planted-tank enthusiasts. Explore our full \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/freshwater-aquarium-plants\"\u003efreshwater aquarium plants\u003c\/a\u003e collection to build out the rest of your aquascape.\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 #2E7D32;padding-left:8px;\"\u003eCare Guide\u003c\/h3\u003e\n\u003cp\u003eLike most sword plants, the Marble Queen is a heavy root feeder. It does best planted in a nutrient-rich substrate or with root tabs tucked under the crown, where its strong root system can pull up the food it needs to push out big, well-marbled leaves. Plant it with the crown (where leaves meet roots) just above the substrate so it does not rot. It is a slow-to-moderate grower that, once established, fills out into a lush rosette.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e Moderate to high. Brighter light keeps the variegation crisp and the plant compact; 10 to 12 hours a day works well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeeding:\u003c\/strong\u003e Heavy root feeder. Use root tabs in inert gravel or sand. Pale or yellow leaves usually mean it wants more iron.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCO2:\u003c\/strong\u003e Not required, but supplemental CO2 produces faster, fuller growth in high-light tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e A large plant. Submersed it commonly reaches 12 to 16 inches and can grow taller, so give it room and a tank of 20 gallons or more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonus:\u003c\/strong\u003e Grown emersed in a paludarium or open tank it can send up tall flower stalks that produce baby plantlets you can replant.\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 #2E7D32;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;max-width:520px;margin:6px 0;font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eCommon Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eMarble Queen Radican Sword, Radican Sword\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eScientific Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\n\u003cem\u003eEchinodorus cordifolius\u003c\/em\u003e 'Marble Queen'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003ePlant Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eRooted rosette (midground to background)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eCare Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eBeginner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eLighting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eModerate to High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eGrowth Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eSlow to Moderate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eMax Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e12 to 16+ inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e72 to 82°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003epH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e6.5 to 7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eCO2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eOptional (not required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003ePlacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eMidground centerpiece or background\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003e\u003cstrong\u003eAvailability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #C8E6C9;padding:6px 10px;\"\u003eIn-store pickup only\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 #2E7D32;padding-left:8px;\"\u003eIn the Aquarium\u003c\/h3\u003e\n\u003cp\u003eThe Marble Queen earns its keep as a single statement plant in a community tank, planted slightly off-center so its variegated leaves draw the eye. It pairs beautifully with darker green companions like crypts and other swords, and the broad leaves give shy fish a sense of cover. Because it gets large, leave space around it so the outer leaves can spread without crowding smaller foreground plants.\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 #2E7D32;padding-left:8px;\"\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/seachem-flourish-tabs\"\u003eSeachem Flourish Tabs\u003c\/a\u003e tucked under the roots, this sword is a heavy root feeder and grows best with them.\u003c\/li\u003e\n\u003cli\u003eAn \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/aquaforest-af-iron-boost\"\u003eiron supplement\u003c\/a\u003e to keep the marbled leaves bright and prevent yellowing.\u003c\/li\u003e\n\u003cli\u003eCompanion rooted plants: \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/amazon-sword-echinodorus-grisebachii-potted-freshwater-plant\"\u003eAmazon Sword\u003c\/a\u003e, \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/melon-sword-echinodorus-osiris-potted-freshwater-plant\"\u003eMelon Sword\u003c\/a\u003e, and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/cryptocoryne-wendtii-bronze-potted-freshwater-crypt-plant\"\u003eCryptocoryne wendtii 'Bronze'\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 #2E7D32;padding-left:8px;\"\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow big does it get?\u003c\/strong\u003e\u003cbr\u003eIt is a large sword. Expect 12 to 16 inches or more when established, so it is best suited to tanks of 20 gallons and up where it has room to spread.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need CO2 to grow it?\u003c\/strong\u003e\u003cbr\u003eNo. It grows fine without CO2 in moderate light. CO2 and stronger light simply speed up growth and produce larger leaves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy new leaves are pale. What is wrong?\u003c\/strong\u003e\u003cbr\u003ePale or washed-out leaves on a sword usually point to a lack of iron or root nutrients. Add root tabs and an iron supplement and the marbling will firm up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are some leaves melting after I planted it?\u003c\/strong\u003e\u003cbr\u003eSwords often drop a few older leaves while adjusting to a new tank, especially if they were grown emersed at the farm. Trim the melted leaves; new submersed growth will follow.\u003c\/p\u003e","brand":"Squeaky's Aquatics","offers":[{"title":"Default Title","offer_id":48849208836315,"sku":"FW5-PRAMA","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/marble-queen-radican-sword-pot-plants-757_1024x_41841fae-8b81-4244-a04c-ab024231baea.webp?v=1780821703","url":"https:\/\/squeakysaquatics.com\/products\/marble-queen-radican-sword-echinodorus-cordifolius","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}