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Guppy Grass (Najas guadalupensis), also known as common water nymph, is a fast-growing freshwater plant valued for its fine, bright green, grass-like leaves and soft, feathery texture that create a natural, bushy appearance in aquariums. Native to North, Central, and South America, it is highly hardy and adaptable, thriving in a wide range of water conditions, which makes it ideal for beginners as well as breeding setups. It can be floated or planted in the substrate and may grow up to 30–90 cm, forming dense vegetation that provides excellent shelter for fry, shrimp, and small fish while also absorbing excess nutrients to improve water quality and help control algae. Guppy Grass tolerates temperatures of around 20–28 °C and a broad pH range of approximately 6.0–8.0, and it propagates easily from stem fragments, allowing it to spread quickly with minimal effort. Thanks to its rapid growth and low maintenance requirements, it is an excellent choice for natural aquascapes, fry tanks, and low-tech planted aquariums.

Hygrophila stricta is a hardy stem plant native to Southeast Asia, recognized for its upright growth and dense, lance-shaped green leaves that can reach around 10–15 cm in length. It grows quickly and is considered easy to cultivate, making it suitable for both beginners and experienced aquarists. This plant typically reaches 15–40 cm in height and is best positioned in the background, where it provides shade, shelter for fish, and helps maintain water quality by contributing oxygen. Hygrophila stricta adapts well to a wide range of water conditions, thrives under low to moderate light, and can even grow above the water surface if left untrimmed. Its fast growth and durability make it an excellent choice for stable, natural-looking aquascapes.