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Here are complete details about Guppy Grass, one of the most popular and beginner-friendly aquatic plants:


🌿 Guppy Grass (Najas guadalupensis)


Common Names:

  • Guppy Grass

  • Najas Grass

  • Common Water Nymph

  • Water Najas


🧬 Scientific Classification:

  • Kingdom: Plantae

  • Family: Hydrocharitaceae

  • Genus: Najas

  • Species: Najas guadalupensis


🌱 Plant Description:

  • Appearance: Delicate, slender stems with many fine, branching leaves.

  • Leaf Color: Light to medium green, sometimes translucent.

  • Leaf Texture: Thin, narrow, and slightly serrated.

  • Growth Pattern: Bushy, tangled appearance — provides excellent cover.

  • Size: Can grow up to 30–90 cm in length.


☀️ Care Requirements:

Parameter Details
Lighting Low to high (moderate preferred for best growth)
CO₂ Not required, but helps with faster growth
Substrate Not necessary (can float or be planted)
Temperature 20°C – 28°C (68°F – 82°F)
pH Range 6.0 – 7.5
Water Hardness Soft to moderately hard water

Growth Characteristics:

  • Very fast-growing — can quickly overtake a tank.

  • Grows both floating and planted.

  • Absorbs excess nutrients from water, helping to prevent algae.

  • Offers excellent biological filtration.

  • Grows well in low-tech setups.


✂️ Maintenance Tips:

  • Requires frequent trimming to prevent it from crowding the tank.

  • Can break apart if handled roughly — use gentle pruning.

  • Remove dying or browning parts to keep water quality high.


🪴 Planting Tips:

  • Can be left floating or planted into the substrate.

  • If planting, anchor gently with plant weights or let roots form naturally.

  • Best placed in midground or background depending on tank size.


🐟 Aquarium Compatibility:

  • Perfect for breeding tanks — provides shelter for fry (especially guppies).

  • Compatible with most freshwater fish and shrimp.

  • Goldfish may eat it unless well-fed.

  • Used in tanks with livebearers, bettas, shrimp, and tetras.


🌸 Propagation:

  • Very easy to propagate.

  • Simply cut the stem and replant or let it float — new roots will form.


⚠️ Special Notes:

  • In high light and rich nutrient tanks, it can become invasive.

  • May shed leaves during sudden changes in parameters.

  • Great plant for low-tech planted tanks or no-CO₂ setups.


🛒 Availability:

  • Widely available in aquarium shops and online.

  • Usually sold in bunches or loose stems.


🌊 Ideal Uses:

  • Fry tanks, shrimp tanks, low-tech aquascapes, ponds, and natural biotope setups.



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To avail free shipping, purchase amount should be Rs350/-(for Aquarium Accessories and Aquatic Plants) or more, less than the above amount shipping charges applicable Rs70/- only. For live fish delivery charges applicable at the time of checkout.

Orders are normally Shipped within 1-2 days and usually take 2-5 working days to be delivered based on your location. However, you will receive an approximate timeline when you place your order.

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