Care Guide
Crinum natan
Crinum Natans
Care at a Glance
Lighting
Moderate
Growth Rate
Slow
Growth Form
Bulb
Placement
Centerpiece
True Aquatic
Yes
Available As
Bare root
About This Plant
Florida Aquatic Nurseries grows the aquarium plant Crinum natans . Crinum natans has long flowing leaves with undulating margins. Crinum natans is best used as a centerpiece in a large planted aquarium to show off its decorative assets. In nature Crinum natans lives through wet and dry periods in its native West Africa. Its bulb store energy for the difficult times. Large white flowers adorn Crinum natans while emersed and sometimes even surprise aquarists by coming to the top of the water in the aquarium.
Quick-Reference Details
- Common name
- Crinum natan
- Scientific name
- Crinum Natans
- Family
- Amaryllidacea
- Native to
- West Africa
- Difficulty
- Advanced
- Requirements
- Undemanding, but needs a large tank with a coarse nutrient rich substrate
- Lighting
- Moderate
- Growth rate
- Slow
- Growth form
- Bulb
- Placement
- Centerpiece
- True aquatic
- Yes
- Available as
- Bare root
Difficulty — Advanced
Performs best with strong lighting, CO2 supplementation, and stable water parameters. Not recommended as a first plant.
CO2 & Fertilization
CO2 is optional. Growth improves with supplementation, but the plant survives and stays presentable without it.
Tank Size & Setup
Plan for at least 20 gallons. Rosette plants spread a foot or wider once established and need vertical room.
Aquascaping & Placement
Position to suit your aquascape — most placements work as long as light reaches the leaves. Set the bulb on top of the substrate, not buried, until roots take hold. Expect a dormant period after flowering.
Tank-Mate Compatibility
Compatible with the full range of community-tank species — tetras, rasboras, livebearers, corydoras, and most other peaceful freshwater fish do not damage the foliage.
Common Care Issues
Algae on old leaves
Slow growers accumulate dust and spot algae on older leaves. Wipe affected leaves with your fingers during water changes, and consider adding a few Amano shrimp or Otocinclus as cleaners.
Slow initial growth
Most aquarium plants pause for 2-4 weeks after planting while they convert from their nursery-grown emersed form to fully submerged growth. New leaves that emerge underwater will look thinner and slightly different — this is the plant adapting, not a problem.
Frequently Asked Questions
How much light does Crinum natan need?
Crinum natan (Crinum Natans) prefers moderate lighting. A standard planted-tank LED fixture run 7-9 hours a day is typical.
Does Crinum natan need CO2?
CO2 is optional. Growth improves with supplementation, but the plant survives and stays presentable without it.
Is Crinum natan good for beginners?
Crinum natan is rated advanced-level. Performs best with strong lighting, CO2 supplementation, and stable water parameters. Not recommended as a first plant.
How fast does Crinum natan grow?
Growth rate is slow. Be patient — visible new growth may take 3-4 weeks, but the plant is famously low-maintenance once settled.
What fish and invertebrates are compatible with Crinum natan?
Compatible with the full range of community-tank species — tetras, rasboras, livebearers, corydoras, and most other peaceful freshwater fish do not damage the foliage.