Nitella gracilis is a stonewort, a branched green alga of the Charales rather than a true plant, recorded from fresh waters across the world. The sources give no description of its size or habitat, and nothing about its aquarium use. If you keep it, treat it like other Nitella: clear, clean water, gentle light, and little or no fertiliser (stoneworts are often harmed by copper and high nutrients). It can be planted loosely or allowed to drift. Water figures are our estimate, not from the sources. Sources: Wikipedia (en.wikipedia.org/wiki/Nitellagracilis); Wikipedia, List of freshwater aquarium plant species. Checked October 2026.
Breeding
Expect it to regrow from stem pieces; stoneworts also form resting spores.
Compatibility and tank mates
Fine and soft, so plant-eating fish and snails may graze it. Best with small peaceful fish and shrimp.
Last updated 8 October 2026. Community-edited care guide on Aquatic-Auctions.
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