Crinum Natans bulb

Name: Crinum Natans bulb
SKU: 21407
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Crinum natans is a striking bulb plant native to African rivers and streams. Its long, flowing, ribbon-like leaves add a dramatic touch to planted aquariums. Here’s everything you need to know about this unique aquatic plant.

Common Names: Floating Crinum, African Onion Plant, River Lily
Scientific Name: Crinum natans
Family: Amaryllidaceae
Origin: West and Central Africa (rivers and streams in Nigeria, Cameroon, etc.)

Appearance:

Leaves: Long, ribbon-like, wavy or crinkled, dark green, can grow up to 4 feet (120 cm) in length.
Growth Form: Submerged aquatic plant, but can grow emersed in shallow water.
Root System: Bulbous base (similar to an onion), with thick, white roots.
Flowers: Rare in aquariums, but produces beautiful white or pink lily-like flowers when grown emersed.

Crinum natans Care Tips

1. Tank Requirements:

Tank Size: Minimum 20 gallons (larger is better due to its size).
Lighting: Moderate to high (but can adapt to low light, grows slower).
Substrate: Nutrient-rich substrate (clay or root tabs recommended).
Water Flow: Prefers gentle to moderate flow (mimics its natural river habitat).

2. Water Parameters:

Temperature: 72–82°F (22–28°C)
pH: 6.0–7.5 (slightly acidic to neutral)
Hardness: Soft to moderately hard (2–15 dGH)

3. Planting & Maintenance:

Planting: Bury the bulb about halfway into the substrate (do not fully cover it to prevent rot).
Fertilization: Benefits from root tabs or liquid fertilizers (iron-rich fertilizers enhance leaf color).
Pruning: Remove old, yellowing leaves at the base. New leaves will grow from the center.
Growth Rate: Slow to moderate (patience is key).

4. Compatibility:

Fish: Safe with most community fish (tetras, gouramis, cichlids).
Inverts: Shrimp and snails won’t harm it.
Avoid: Plant-nibbling fish (like goldfish or some cichlids).

5. Propagation:

Produces bulb offsets (pups) that can be separated and replanted once they develop roots.
Rarely flowers underwater but may produce seeds if grown emersed.

Final Notes:

Hardy but slow-growing – don’t expect rapid growth.
Leaves may melt initially when moved to a new tank but will regrow if the bulb is healthy.
Great for midground or background in larger aquariums.

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🌱 Care Requirements (Quick Summary)

Factor	Ideal Conditions
Light	Moderate to high (adapts to low light)
CO₂	Beneficial but not required
Substrate	Nutrient-rich (clay, sand + root tabs)
Temperature	72–82°F (22–28°C)
pH	6.0–7.5
Hardness	Soft to moderately hard (2–15 dGH)
Placement	Midground/background (needs space)

Key Care Tips

Planting:
- Bury the bulb only halfway (burying too deep causes rot).
- Space plants 6+ inches apart (they grow large).
Fertilization:
- Root tabs (high in iron) promote healthy leaves.
- Liquid fertilizers help if no CO₂ is used.
Maintenance:
- Trim old/yellow leaves at the base.
- Slow grower—patience is key!
Propagation:
- Grows “pups” (offsets) from the bulb—separate & replant.
- Rarely flowers underwater.

⚠️ Common Issues & Fixes

Yellow Leaves: Usually due to nutrient deficiency (add root tabs/iron).
Bulb Rot: Caused by burying too deep—uncover if mushy.
Melting: May shed leaves when moved; new growth will come if bulb is healthy.

🐟 Tank Mates

✔ Good: Tetras, rasboras, gouramis, shrimp, snails.
❌ Avoid: Goldfish, cichlids, or plant-eating fish.

🎨 Aquascaping Uses

Tall background plant (great for hiding equipment).
Centerpiece in large tanks (wavy leaves add movement).
Emersed growth in paludariums (produces flowers).

🔎 Fun Fact:

Crinum natans is one of the few true bulb plants in the aquarium hobby, making it a unique and long-lived choice!

Categories: Live Plants & Neutrients, Plants, Potted

Common names	Hansen’s Nardoo
Synonyms	Marsilea azorica Launert & Paiva
Complete botanical name	Marsílea hirsúta R. Br.
Family	Marsileaceae
Genus	Marsilea
Usage	Foreground, ground cover
Aquascaping	forms a small-leaved carpet