Stargrass (Heteranthera zosterifolia) is an intermediate-level aquarium plant. A fast, bright green stem plant with narrow star-shaped leaves. It grows quickly with enough light and nutrients, and benefits from regular trimming and replanting of the tops.

Care facts at a glance

Scientific nameHeteranthera zosterifolia
FamilyPontederiaceae
OriginSouth America
Height6-16 in
LightModerate to high
CO2Optional
PlacementBackground stem plant
Growth rateFast
Temperature68-82°F
pH6.0-7.5
DifficultyIntermediate
PropagationCuttings

Quick tips

  • Trim and replant the tops to keep it bushy.
  • Needs good light and nutrients to stay full at the bottom.
  • Add iron-rich fertilizer if the leaves pale.

San Diego water

Captive-bred stock usually adapts to San Diego tap water with slow acclimation. For best color and health, many keepers blend tap with RO/DI water. Learn the numbers in our San Diego tap water guide.

New to planted tanks? Start with our beginner planted tank guide and the plant fertilizer guide.

Find it at Pet Zone

Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.

Pet Zone Convoy

4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm

Aquascaping, planted tanks

Pet Zone Mid-City

4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm

Monster fish, koi