Cryptocoryne undulata ‘Red’ – Hardy Red Crypt Aquarium Plant
Cryptocoryne undulata ‘Red’ is a hardy freshwater aquarium plant known for its wavy leaves and attractive red-bronze to brown coloration. Native to Sri Lanka, this Crypt adds natural texture, subtle color, and a low-maintenance look to planted aquariums.
Unlike many red aquarium plants, Cryptocoryne undulata ‘Red’ can grow well in low-tech setups without CO2 injection. Once established, it develops a strong root system and becomes a reliable midground or background plant for community aquariums, shrimp tanks, and natural aquascapes.
Key Features
- Hardy and beginner-friendly Cryptocoryne plant
- Wavy leaves with red-bronze to brown coloration
- Great for low-tech planted aquariums
- Does not require CO2 injection
- Excellent midground or background plant
- Safe for shrimp, snails, and peaceful freshwater fish
Plant Information
- Scientific Name: Cryptocoryne undulata ‘Red’
- Common Name: Crypt Undulata Red
- Plant Type: Rosette plant
- Care Level: Easy
- Growth Rate: Slow to moderate
- Placement: Midground to background
- Lighting: Low to moderate
- CO2: Not required; optional for improved growth
- Temperature: 72–82°F
- pH Range: 6.0–7.5
- Approximate Height: 6–10 inches, depending on conditions
Why Choose Cryptocoryne undulata ‘Red’?
Cryptocoryne undulata ‘Red’ is a great choice for aquarists who want warm red-bronze tones without the demands of high-light red stem plants. Its wavy leaves create movement and texture, while its slower growth makes it easy to manage in planted tanks.
This plant works especially well in natural-style aquariums, jungle aquascapes, low-tech planted tanks, and community setups where long-term stability and low maintenance are important.
How to Plant
Plant Cryptocoryne undulata ‘Red’ directly into aquarium substrate, keeping the crown of the plant above the substrate line. This plant is a heavy root feeder and benefits from nutrient-rich substrate or root tabs placed near the roots.
After planting, avoid moving it frequently. Crypts prefer stability, and once established, they can grow into a strong, long-lasting plant group.
Best Uses in Aquariums
- Low-tech planted aquariums
- Freshwater community tanks
- Shrimp tanks
- Natural aquascapes
- Jungle-style aquariums
- Midground plant groupings
- Background texture in smaller tanks
Care & Maintenance Tips
Cryptocoryne undulata ‘Red’ grows best in stable aquarium conditions with low to moderate lighting. CO2 is not required, but steady nutrients and root tabs can help support stronger growth and healthier leaves.
Some crypt melt may occur after planting or after changes in water conditions. This is common with Cryptocoryne plants. As long as the roots remain healthy, new growth should appear once the plant adjusts.
Frequently Asked Questions
Does Cryptocoryne undulata ‘Red’ need CO2?
No. CO2 is not required. It can grow well in low-tech aquariums, though CO2 may improve growth speed and fullness.
Why are the leaves melting after planting?
Crypt melt is common after transplanting or sudden changes in aquarium conditions. New leaves usually grow back once the plant adapts.
Is Cryptocoryne undulata ‘Red’ safe for shrimp and snails?
Yes. This plant is safe for shrimp, snails, and peaceful freshwater fish.
Can Cryptocoryne undulata ‘Red’ grow in low light?
Yes. It can grow in low to moderate light. In lower light, the color may appear more bronze or brown than deep red.
How tall does Cryptocoryne undulata ‘Red’ grow?
It typically grows around 6–10 inches tall, depending on lighting, nutrients, substrate, and overall aquarium conditions.
Where should I place this plant?
It works well in the midground or background, depending on tank size and aquascape layout.
Does this plant need root tabs?
Root tabs are recommended, especially in plain gravel or sand, because Cryptocoryne plants feed heavily through their roots.
Available at Tropical Treasures Wyo
Cryptocoryne undulata ‘Red’ is a hardy, low-tech aquarium plant for aquarists who want wavy leaves, red-bronze color, and easy long-term growth in freshwater planted tanks. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, or shop online for live aquarium plants, Cryptocoryne varieties, shrimp, snails, freshwater fish, planted tank fertilizers, aquascaping tools, and aquarium supplies.
Explore More Aquarium Products:
Low stock: 8 left
Couldn't load pickup availability
Explore Related Aquarium Products: