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Native to slow-moving freshwater across the Americas, Cabomba caroliniana produces delicate, finely divided fan-shaped leaves arranged in whorls along soft, brittle stems, giving planted tanks a wispy, feathery texture unlike almost any other background plant. It has long been a favorite backdrop plant precisely because its fine texture contrasts so strongly with broader-leaved species nearby.
This species is on the EU list of invasive alien species of Union concern.
In the EU it is generally illegal to keep, grow, sell, transport or release it.
Never release it, or any part of it, into waterways or the wild. Dispose of it with the household waste, not in water or on the compost.
Rules outside the EU, and national rules, can differ.
Source: Regulation (EU) No 1143/2014 and the Union list in Implementing Regulation (EU) 2016/1141
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Handling Cabomba roughly makes its fragile, feathery leaves shed rapidly, as do low light and poor water flow. Loose pieces of stem root easily, which is one reason the plant spreads so readily outside an aquarium.
Its fine, delicate leaves shed easily after rough handling, in low light, in poor water flow or when the water quality is unstable.
This happens under insufficient light, since it stretches toward the surface.
Not strictly, but it benefits strongly from it. With injected CO2 it grows denser and keeps its leaves better.
High light. Under weak light it grows sparse and sheds its leaves.
Soft, slightly acidic water at pH 6.0-7.0 and 22-26°C. Change 20-30% of the water every week.
Generally not. Cabomba caroliniana is on the EU list of invasive alien species of Union concern, so in the EU it is generally illegal to keep, grow, sell, transport or release it. National rules, and rules outside the EU, can differ.
With the household waste. Put the whole plant in the bin, including every loose piece of stem, and never put it in a pond, a stream, a drain or the compost.
