Cryptocoryne — “crypts” to hobbyists — are among the hardiest rooted aquarium plants you can grow. They form lush rosettes of wavy leaves that are perfect for the midground, and once settled they reward you for years. Here’s how to keep them happy.
How to care for Cryptocoryne plants
Quick answer: To care for Cryptocoryne, plant it in nutrient-rich substrate or gravel with root tabs, keeping the crown just above the surface. Give low to medium light, no CO2 and 22–28°C, then leave it undisturbed. If leaves melt after planting, keep the roots in place; new leaves usually follow within 2–4 weeks.
Planting Cryptocoryne
Unlike Anubias, crypts are rooted plants: plant the crown in your substrate, keeping the base of the leaves (the crown) just above the soil. They feed heavily from their roots, so a nutrient-rich substrate or root tabs help them flourish. Crypts are also among the most dependable plants for a soil-based Walstad tank, where a thin layer of plain soil under the sand feeds their roots directly.
Light and water
Crypts thrive in low to moderate light without CO₂, comfortable around 22–28°C. They adapt to a wide range of water, which is why they’re so beginner-friendly.
Why is my Cryptocoryne melting?
“Crypt melt” — leaves going mushy and dissolving soon after planting — is completely normal. It’s the plant shedding its old growth to adapt to your water. Don’t pull it out: leave the roots undisturbed, remove the mushy leaves, and new, fully-adapted growth follows within weeks.
Propagation
Cryptocoryne spreads via runners, sending up daughter plants beside the parent. Once a daughter has its own roots and a few leaves, separate it and replant elsewhere to build a carpet of crypts.
Cryptocoryne care sheet
| Parameter | Recommendation |
|---|---|
| Light | Low to medium |
| CO₂ | Not required |
| Temperature | 22–28 °C |
| pH | 6.0–8.0 (most species adapt to Indian tap water) |
| Substrate | Nutrient-rich soil, or gravel with root tabs |
| Placement | Foreground (small species) to midground |
| Growth rate | Slow to moderate |
| Propagation | Runners producing daughter plants |
| Price in India (Anubias.in) | From ₹150 (C. wendtii Green) |
How to prevent crypt melt
Keep conditions stable before and after planting. Crypt melt is triggered by sudden changes in light, temperature or water chemistry, so it is most common right after shipping. To reduce it, plant crypts as soon as they arrive, avoid moving them once planted, match temperature closely, and do smaller water changes during the first two weeks. Even if every leaf melts, a healthy rhizome regrows within 2–4 weeks.
Popular Cryptocoryne for beginners
- Cryptocoryne wendtii Green: bright green, wavy leaves, 10–20 cm tall; one of the hardiest crypts.
- Cryptocoryne wendtii Red (Bronze): brown-red leaves that add warm colour to the midground.
- Cryptocoryne parva: the smallest common crypt, used as a slow foreground carpet.
Common problems
- Yellow older leaves: add root tabs near the plant.
- Tall, leggy growth: light is too weak or the plant is shaded by floaters.
- Plant floating up: weigh it down with a small stone until the roots grip the substrate.
More Cryptocoryne guides:
Placement
Use crypts in the midground, in front of taller stems and beside hardscape planted with Anubias and Java fern for a layered, natural look.
Browse our Cryptocoryne collection and pair them with Anubias — shipped across India with a live-arrival guarantee.
Ready to choose a species? See our Cryptocoryne species guide, comparing wendtii, parva and more. Want a ready-to-plant pick? Our Cryptocoryne wendtii ‘Green’ is a hardy all-rounder, and if you are deciding between two classic low-light plants, see our Cryptocoryne vs Anubias comparison.
Frequently asked questions
Is Cryptocoryne good for beginners?
Yes. Once it settles, Cryptocoryne is one of the hardiest rooted plants and grows well for years with low light and occasional root tabs.
Can Cryptocoryne grow on driftwood like Anubias?
No. Crypts are rooted plants and need substrate. Use Anubias or Java fern for wood and rock.
How fast does Cryptocoryne spread?
In a settled tank, a single crypt usually sends out a few daughter plants every couple of months.
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