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Water clover (Marsilea hirsuta)
AI illustration, not an ID reference

Water clover

Marsilea hirsuta

PlantsFreshwater

Care level
Moderate
Maximum size
8 cm
Temperature
20–28 °C
pH
6–7.5
Light
Medium
Diet
Photosynthetic

Care at a glance

Water clover, also called Marsilea, isn't a true plant but a fern relative, recognisable by its distinctive four-leaf-clover-shaped leaves. It spreads across the substrate on its own via runners, forming a natural-looking carpet.

With enough light it stays low and keeps that characteristic clover shape; in low light it grows taller and less compact, and the clover shape becomes less pronounced. Give it a loose, nutrient-rich substrate the runners can spread through, and be patient — a closed carpet forms gradually over time.

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.