What is Guppy Grass? (And Why Fish Keepers Love It)
Guppy grass, or Najas guadalupensis, is a fast-growing aquatic plant that's very popular with aquarium hobbyists—especially those keeping guppies, shrimp, or fry. It's called "guppy grass" since it's the perfect hiding and breeding spot for guppies and other livebearers.
This plant can be substrate-anchored or simply free-floating in the tank. It has slender, graceful stems and lengthy, green, narrow leaves that provide excellent shelter for fry to hide from adult fish, which is the reason it is often utilized in breeding tanks.
Why Use Guppy Grass?
Fry shelter – protects guppy fry from being eaten
The oxygen booster provides oxygen to the water.
Water filter – excess nutrients are removed and algae is limited Simple to cultivate, it requires no CO₂ or advanced lighting.
Whether you are an aquarist newbie or seasoned veteran, guppy grass is an easy-to-maintain plant that makes your tank healthy and your fish content.
Do I have to give special light or CO₂ to guppy grass?
No, Guppy grass does well in low to moderate lighting and requires no additional CO₂. It is very beginner-friendly.
Should I let it float or plant it in the substrate?
Either way! Floating allows it to grow more quickly and offers fry more hiding places. Attaching it makes your tank look neater—totally your style!.
How fast do guppy grass grow?
It is very quick-growing, especially in warm well-lit tanks. You will need to cut it back every week to stop it from taking over.
Will Guppy Grass help reduce algae in my tank?
Yes! Guppy grass absorbs excess nutrients that algae feed on, helping to keep algae growth in check.
Add guppy grass to your tank today, providing the perfect natural environment for your fish! Regardless of whether you allow it to float or firmly plant it in the substrate, this hardy plant increases oxygen, cleanses the water, and offers superb hiding places for fry. It's a must-have addition for both guppy breeders and beginning aquarists—claim your share now to take the health and beauty of your tank to the next level!","contentAlignProduct":"Center","infoProduct":{"id":"gid://shopify/Product/9941498659094","title":"Live Guppy Grass (Najas guadalupensis)","currencyCode":"USD","amountMax":"6.5","amountMin":"6.5","price":"6.50","compareAtPrice":"12.00","imagesUrl":"https://cdn.shopify.com/s/files/1/0873/4146/5878/files/guppygrass.jpg?v=1744945923&width=600","urlStore":"/products/live-guppy-grass-najas-guadalupensis","altImage":""},"colorTitle":{"hue":213,"brightness":0.83,"saturation":1},"colorPrice":{"hue":0,"saturation":1,"brightness":0},"colorDiscount":{"hue":356,"saturation":0.74,"brightness":1},"hidden":false,"locked":false,"blockName":"Text and product","isRemoveBranding":true}
Add guppy grass to your tank today, providing the perfect natural environment for your fish! Regardless of whether you allow it to float or firmly plant it in the substrate, this hardy plant increases oxygen, cleanses the water, and offers superb hiding places for fry. It's a must-have addition for both guppy breeders and beginning aquarists—claim your share now to take the health and beauty of your tank to the next level!