{"product_id":"cardinal-plant-aquarium-plant-lobelia-cardinalis","title":"Cardinal Plant – Lobelia cardinalis Aquarium Plant","description":"\u003cp\u003eCardinal Plant is a beautiful and versatile freshwater aquarium plant known for its compact growth, bright green leaves, and potential reddish tones under strong lighting. Also known as \u003cem\u003eLobelia cardinalis\u003c\/em\u003e, this attractive plant adds natural color, structure, and texture to planted aquariums.\u003c\/p\u003e\n\u003cp\u003eOften used as a foreground to midground plant, Cardinal Plant works well as an accent plant in aquascapes, shrimp tanks, and peaceful community aquariums. Under medium to high lighting with steady nutrients, the undersides of the leaves may develop reddish hues, creating extra contrast and visual interest.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact freshwater aquarium plant with bright green leaves\u003c\/li\u003e\n\u003cli\u003eCan develop reddish tones under strong lighting\u003c\/li\u003e\n\u003cli\u003eGreat foreground to midground accent plant\u003c\/li\u003e\n\u003cli\u003eCan be grown submerged or emersed\u003c\/li\u003e\n\u003cli\u003eEasy to trim and shape for aquascapes\u003c\/li\u003e\n\u003cli\u003eSafe for shrimp, snails, and peaceful freshwater fish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePlant Care Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eLobelia cardinalis\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Name:\u003c\/strong\u003e Cardinal Plant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Type:\u003c\/strong\u003e Stem \/ compact aquarium plant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlacement:\u003c\/strong\u003e Foreground to midground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e Medium to high\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 72–82°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e 6.0–7.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Rate:\u003c\/strong\u003e Moderate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare Level:\u003c\/strong\u003e Easy to moderate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCO2:\u003c\/strong\u003e Not required; recommended for denser growth and stronger color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate:\u003c\/strong\u003e Nutrient-rich substrate recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTank Placement\u003c\/h3\u003e\n\u003cp\u003eCardinal Plant works best in the foreground to midground of freshwater planted aquariums. Its compact growth makes it useful for creating small groups, borders, accents, and layered aquascape sections around rocks, driftwood, and taller background plants.\u003c\/p\u003e\n\u003cp\u003eThis plant can be grown fully submerged in aquariums or emersed in humid setups. When grown emersed, it may show stronger red coloration, while submerged aquarium growth is often bright green with possible reddish tones under strong lighting.\u003c\/p\u003e\n\u003ch3\u003eLighting, CO2 \u0026amp; Nutrients\u003c\/h3\u003e\n\u003cp\u003eCardinal Plant grows best under medium to high lighting. Stronger lighting and steady nutrients can improve compact growth and help bring out reddish tones, especially on the undersides of the leaves.\u003c\/p\u003e\n\u003cp\u003eCO2 is not required, but CO2 supplementation can improve density, growth speed, and coloration. Without CO2, this plant can still grow well, but it may stay greener and less compact. Nutrient-rich substrate and regular liquid fertilization help support healthy long-term growth.\u003c\/p\u003e\n\u003ch3\u003eTrimming \u0026amp; Propagation\u003c\/h3\u003e\n\u003cp\u003eTrim Cardinal Plant regularly to maintain a compact shape and encourage fuller growth. Healthy cuttings can be replanted directly into the substrate to create denser groups or expand the plant into other areas of the aquarium.\u003c\/p\u003e\n\u003cp\u003eRegular trimming helps keep the plant from becoming too tall and encourages a cleaner, more structured aquascape appearance. Replanting trimmed tops is an easy way to create a thicker foreground or midground display over time.\u003c\/p\u003e\n\u003ch3\u003eBest Uses in Aquariums\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eForeground to midground aquascapes\u003c\/li\u003e\n\u003cli\u003eCompact planted tank layouts\u003c\/li\u003e\n\u003cli\u003eShrimp tanks and fry cover\u003c\/li\u003e\n\u003cli\u003eCommunity fish aquariums\u003c\/li\u003e\n\u003cli\u003eEmersed aquarium setups\u003c\/li\u003e\n\u003cli\u003eAccent planting near driftwood and rocks\u003c\/li\u003e\n\u003cli\u003eMedium to high-light planted aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan Cardinal Plant grow out of water?\u003c\/strong\u003e\u003cbr\u003eYes. Cardinal Plant can be grown emersed in humid setups, paludariums, ripariums, or open-top displays. Emersed growth may show deeper red coloration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Cardinal Plant safe for shrimp and snails?\u003c\/strong\u003e\u003cbr\u003eYes. Cardinal Plant is safe for shrimp, snails, and peaceful freshwater fish. It can also provide cover and grazing surfaces for shrimp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes Cardinal Plant need CO2?\u003c\/strong\u003e\u003cbr\u003eNo. CO2 is not required, but CO2 can improve growth density, compact shape, and coloration in aquascaped tanks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill Cardinal Plant stay purple or red underwater?\u003c\/strong\u003e\u003cbr\u003eIt may not stay purple or strongly red without high light, CO2, and steady nutrients. Submerged growth is often bright green with possible reddish tones under strong conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should I place Cardinal Plant in my aquarium?\u003c\/strong\u003e\u003cbr\u003eCardinal Plant works best in the foreground to midground where its compact growth can add structure, color, and texture to the aquascape.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I propagate Cardinal Plant?\u003c\/strong\u003e\u003cbr\u003eTrim healthy stems or tops and replant the cuttings directly into the substrate. This helps create fuller groups and denser growth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Cardinal Plant beginner-friendly?\u003c\/strong\u003e\u003cbr\u003eCardinal Plant is manageable for beginners with proper lighting and nutrients, but it looks best in stable aquariums with medium to high light.\u003c\/p\u003e\n\u003ch3\u003eAvailable at Tropical Treasures Wyo\u003c\/h3\u003e\n\u003cp\u003eCardinal Plant is a compact aquarium plant for aquarists looking to add bright green foliage, possible reddish tones, and natural foreground to midground structure to freshwater planted tanks. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, or shop online for live aquarium plants, freshwater fish, shrimp, snails, and aquarium supplies.\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":52165386666197,"sku":"E4","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/files\/CardinalPlant_Lobeliacardinalis.jpg?v=1760189218","url":"https:\/\/tropicaltreasureswyo.com\/products\/cardinal-plant-aquarium-plant-lobelia-cardinalis","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}