Vallisneria
Vallisneria spiralis
Edited by Ivan F. · Reviewed
Beginner verdict
A tall, ribbon-leaved plant that spreads through runners and quickly builds a natural grassy background. It grows well in low light with no added carbon dioxide and likes harder water. A fast, simple way to fill the back of a tank, as long as you keep it trimmed.
- Light
- Low
- CO2
- Not Needed
- Growth
- Fast
- Placement
- Background
- Max height
- 12 in (30 cm)
- Temperature
- 68–82 °F (20–28 °C)
- pH
- 6–8
- Needs substrate
- Yes
Vallisneria care
How it spreads
It sends out runners that form new plants, often faster than you expect. Thin them out as needed.
Vallisneria care mistakes to avoid
- Keep the crown above the substrate when planting, or it may rot.
- Thin the runners regularly, because it spreads quickly across the tank.
- Trim carefully, since leaves that are cut often turn brown at the tip.
- Avoid liquid carbon products, which can harm it.
Vallisneria setup
LightLow light
Our sources rate Vallisneria as a low light plant. These are the lights we chose for a first planted tank.
hygger 18W LED Aquarium Light (18-24 inch) US
NICREW ClassicLED Plus Aquarium Light US
EHEIM classicLED plants 550 mm Spain
EHEIM classicLED daylight 550 mm Spain
Why we chose these (Best Light for a Beginner Planted Tank). Nobody here has used or tested them.
SubstrateA root-feeding plant: Tropica names Vallisneria among the plants that suit root capsules placed in the substrate.
We are still choosing products for this.
Where to buy Vallisneria
We have not found a store that sells Vallisneria under its scientific name yet. We add stores as we confirm them.
Live animals and plants travel by courier. Check the store's live-arrival guarantee, and only buy once your tank has cycled (see how to cycle a fish tank).
Some US states restrict certain species. Check our US state aquarium rules table and your state's own rules before you buy.
Vallisneria FAQ
How tall does Vallisneria grow?
Tropica lists growth to about 30 cm (12 in) in a tank, and it can grow larger over time.
What light does Vallisneria need?
Tropica rates its light demand as low. Most standard aquarium lights are enough.
Why is my vallisneria melting?
It often melts when first planted or after a water change in chemistry. Give it time, or avoid liquid carbon products, which it dislikes.
How fast does it spread?
Quickly, once settled. Runners can fill the back of a tank, so remove extras when they crowd out other plants.
Vallisneria facts and sources
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