I have killed more Dwarf sagittaria than I care to admit, usually by overthinking the light and underwatering the root zone at the same time. The Sagittaria subulata Dwarf sagittaria is a workhorse plant for a reason: it tolerates a wide range of conditions and still looks good doing it.
At a glance
| Light | medium |
|---|---|
| Temperature | 22 to 28 °C |
| pH | 6.0 to 7.5 |
| Height | 10 to 20 cm |
| CO₂ | not required |
| Growth | moderate |
Planting
Plant Dwarf sagittaria with the crown or rhizome clear of the substrate — burying it rots the base. In a 31-gallon tank, position it mid-ground or background depending on its height. Weaker setups do fine; pair it with our canister vs hang-on-back filter: which should you run? guide for a layered look.
Light and CO₂
Run 9 hours of light a day on a timer to avoid algae swings. Dwarf sagittaria grows under medium light and not required, though a small, steady dose of liquid fertiliser every 2 weeks pushes denser growth.
Propagation
Runners spread it into a foreground carpet.
Common issues
Yellowing lower leaves usually mean a nutrient gap, not too little light. Trim dying leaves at the base, keep nitrates around 10 to 20 ppm, and avoid moving the plant every week — our ammonia poisoning: the silent new-tank killer guide explains why stability beats tinkering.
