








Guppy Grass (Najas guadalupensis) – 16 oz Portion | Fast-Growing Live Aquarium Plant
Guppy Grass (Najas guadalupensis) is one of the most versatile and beginner-friendly aquarium plants available. This 16 oz portion contains a generous amount of loose, fresh-cut stems perfect for adding oxygenation, cover, and nutrient balance to any freshwater setup. Whether you’re raising fry, breeding shrimp, or creating a lush aquascape, Guppy Grass is an excellent floating or rooted plant that thrives in a wide variety of conditions.
Its dense, growth provides excellent cover for fry and small fish, while also helping to reduce algae by outcompeting it for nutrients. Easy to trim, propagate, and manage—this is a must-have plant for hobbyists and breeders alike.
Ideal For:
Fry grow-out tanks (bettas, guppies, killifish, etc.)
Shrimp colonies and nano aquariums
Planted tanks and aquascapes
Outdoor tubs and natural ponds
Beginners and low-tech tanks
Care Information:
Light: Low to high; grows faster with moderate lighting
Temperature: 40°F–82°F (4°C–28°C)
pH Range: 6.0–8.0
Growth Rate: Fast
Placement: Floating or planted in substrate
CO₂/Fertilizer: Not required, but benefits from liquid ferts
Trimming: Easily propagated by cutting and replanting stem pieces
Tip:
Let it float to create dense mats for fry protection, or plant stems in substrate for a rooted appearance.
Guppy Grass (Najas guadalupensis) is one of the most versatile and beginner-friendly aquarium plants available. This 16 oz portion contains a generous amount of loose, fresh-cut stems perfect for adding oxygenation, cover, and nutrient balance to any freshwater setup. Whether you’re raising fry, breeding shrimp, or creating a lush aquascape, Guppy Grass is an excellent floating or rooted plant that thrives in a wide variety of conditions.
Its dense, growth provides excellent cover for fry and small fish, while also helping to reduce algae by outcompeting it for nutrients. Easy to trim, propagate, and manage—this is a must-have plant for hobbyists and breeders alike.
Ideal For:
Fry grow-out tanks (bettas, guppies, killifish, etc.)
Shrimp colonies and nano aquariums
Planted tanks and aquascapes
Outdoor tubs and natural ponds
Beginners and low-tech tanks
Care Information:
Light: Low to high; grows faster with moderate lighting
Temperature: 40°F–82°F (4°C–28°C)
pH Range: 6.0–8.0
Growth Rate: Fast
Placement: Floating or planted in substrate
CO₂/Fertilizer: Not required, but benefits from liquid ferts
Trimming: Easily propagated by cutting and replanting stem pieces
Tip:
Let it float to create dense mats for fry protection, or plant stems in substrate for a rooted appearance.