Wild AI
PLANT OVERVIEW
About Onion Plant
A large bulb plant with long, flat, ribbon-like leaves.
Crinum thaianum is a massive plant suitable only for large aquariums. Its tough leaves are resistant to herbivorous fish.
Background · Beginner friendly
Onion Plant
Crinum thaianum
1 / 2
DIFFICULTY
Easy–Moderate
A forgiving choice for newer planted tanks.
LIGHT
Moderate
Around 10 hours is a useful starting point.
CO₂
Optional
Injection is not normally necessary.
GROWTH
Medium
Medium trimming needs.
CARE PROFILE
What this plant needs.
The useful numbers and practical notes, grouped around how you actually keep the plant.
TANK FIT
Placement + size
Primary placementBackground
Typical height24–72 in
Typical width12 in
Suggested minimum tank40 gal
Suggested tank height74 in+
LIGHT + CO₂
Energy demand
Ideal lightModerate
Photoperiod range8–12 hr
Approx. PAR20–80
Injected CO₂Optional
CO₂ benefitLow
NUTRITION
Where it feeds
Root feedingHigh
Water-column feedingLow
Overall fertilizer demandModerate
Iron demandLow
MicronutrientsLow
WATER
Useful parameter range
Temperature72–82°F
pH6–8
GH4–20 dGH
KH3–15 dKH
How to plant it.
Substrate: Sand or gravel
Leave bulb partially exposed.
What to expect after planting.
Propagation
Bulb division
Acclimation
Adapts well.
What usually goes wrong.
Can outgrow most aquariums.
KEEP EXPLORING
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