Dwarf hygrophila
Hygrophila polysperma
PlantsFreshwater
- Care level
- Easy
- Maximum size
- 40 cm
- Temperature
- 18–28 °C
- pH
- 6–8
- Light
- Low
- Diet
- Photosynthetic
Care at a glance
This hygrophila is notoriously easy: it grows under low light, without CO2 and with hardly any fertiliser, which is why it was recommended to beginners for decades. Under plenty of light the tips colour pink to coppery red.
That very vigour makes it risky outside the aquarium: in the United States it is on the federal noxious weed list and its trade is prohibited in several states. So never release it into the wild, dispose of trimmings with green waste and check the rules in your country if in doubt.
Related species
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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.