Najas guadalupensis, commonly known as Guppy Grass, is a versatile and exceptionally easy-to-grow aquatic plant native to North, Central, and South America. Renowned for its rapid growth and adaptability, it thrives in a wide range of water conditions, making it an excellent choice for both beginner and experienced aquarists.
This attractive plant is most commonly grown as a free-floating species, although it can also develop delicate roots and anchor itself within the substrate. Its fine, branching foliage creates a dense network of cover that provides valuable shelter for fish fry, shrimp, and other small aquatic inhabitants. The lush growth also helps improve water quality by absorbing excess nutrients, reducing algae growth, and increasing oxygen levels within the aquarium.
Najas guadalupensis is ideal for breeding tanks, shrimp aquariums, community setups, and outdoor ponds. Its fast growth and low-maintenance nature make it one of the most useful plants for creating a healthy, natural environment while offering excellent refuge for aquatic life.
Plant Information
Origin: North, Central, and South America
Growth Rate: Fast
Height: 20 – 100+ cm
Light Requirement: Low to Medium
CO₂ Requirement: Low (not required, but beneficial)
Ideal for: Breeding tanks, shrimp aquariums, community aquariums, natural aquascapes, and outdoor ponds.
