{"product_id":"spirodela-polyrrhiza-greater-duckweed-1-2-grow-format","title":"Spirodela polyrrhiza (Greater Duckweed) - 1-2-Grow! Format","description":"\u003cp\u003eGreater Duckweed spreads quickly across the water's surface, giving fish shaded cover and helping limit the nutrients that feed algae. It's supplied as young plantlets in the 1-2-Grow! tissue-culture format, suited to both new and experienced aquarium keepers.\u003c\/p\u003e\u003cp\u003eSpirodela polyrrhiza, commonly known as Greater Duckweed, is a free-floating aquarium plant whose small, rounded green fronds drift across the surface, giving the tank the layered look of a natural pond. It suits aquarists who want a low-maintenance floating plant that helps shade fish from strong light and keeps algae in check by competing with it for the nutrients it needs to grow.\u003c\/p\u003e\u003cp\u003eAs it multiplies, Spirodela polyrrhiza draws nutrients out of the water, which is described as helping to keep water quality steadier over time. It's not a plant to leave untouched though: because it spreads so readily, thinning it back regularly stops it covering the whole surface and shading out plants growing below.\u003c\/p\u003e\u003cp\u003eWhat you get is a pack of three 1-2-Grow! cups of Spirodela polyrrhiza tissue-culture plantlets. What sets it apart is its origin: this duckweed is native to North America.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNorth America\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifficulty\u003c\/td\u003e\n\u003ctd\u003eEasy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAquarium placement\u003c\/td\u003e\n\u003ctd\u003eFast-growing and floating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"AquaticsHub","offers":[{"title":"1-2-Grow! (pack of 3)","offer_id":57679249998197,"sku":"TRP-131-TC","price":17.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/0610\/4949\/files\/spirodela-polyrrhiza-greater-duckweed-1-2-grow-format.jpg?v=1792402386","url":"https:\/\/aquaticshub.co.uk\/products\/spirodela-polyrrhiza-greater-duckweed-1-2-grow-format","provider":"AquaticsHub","version":"1.0","type":"link"}