All species
Star grass (Heteranthera zosterifolia)
AI illustration, not an ID reference

Star grass

Heteranthera zosterifolia

PlantsFreshwater

Care level
Moderate
Maximum size
40 cm
Temperature
22–28 °C
pH
6–7.5
Light
Medium
Diet
Photosynthetic

Care at a glance

Star grass gets its name from the small white flowers it can produce above the waterline, but in the aquarium it is mainly valued for its fresh green, grassy leaves on fast-growing stems — an easy way to fill out the background quickly.

Given enough light and a bit of extra feeding it grows sturdily and branches heavily, which means regular trimming is needed to stop it swamping the rest of the planting. Without CO2 it remains perfectly viable, just noticeably slower and with smaller leaves.

Related species

Keep Star grass in the BlubHub app

Add this species to your inhabitants, with count and photos, and see the care info next to your own water values, target bands and reminders. Free, no account, everything on your own device.

More about the app

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