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Water Violet
Hottonia palustris
Plantae›Tracheophyta›Magnoliopsida›Ericales›Primulaceae
📍 Europe & Western Asia
Stunning cold-water stem plant with whorls of feathery leaves. One of the most beautiful temperate aquarium plants. Challenging to keep in tropical tanks — prefers cool, clear, well-oxygenated water.
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Compatible Livestock
Small, peaceful algae grazers that won't damage delicate foliage and thrive in cool, well-oxygenated water
Tiny, gentle schooling fish that prefer cool temperatures and won't uproot or consume the plant
Peaceful invertebrates that clean algae without damaging plants and tolerate cool water conditions
Complementary cold-water stem plant with similar care requirements; creates natural-looking planted layout
Hardy cold-water plant that pairs well with Water Violet; both thrive in cool, clear, well-lit tanks
Temperate fish species that prefer cool water (5–18°C) and won't disturb delicate plant structure
Common Diseases
Nutrient Deficiency
Yellowing leaves, stunted growth, pale coloration, leaf holes or necrotic spots
Increase fertilizer dosing (macros and micros); ensure substrate is nutrient-rich; test water parameters and adjust CO₂ if needed
Algae Overgrowth (Green Spot, Black Beard)
Green or black algae coating leaves and stems, reduced photosynthesis, plant decline
Reduce light duration to 8–10 hours daily; increase water changes; add algae-eating shrimp or fish; improve water circulation
Melting (Decay)
Leaves become translucent, mushy, or dissolve; stems rot; rapid plant deterioration
Improve water quality with frequent changes; ensure adequate CO₂ and lighting; remove decaying tissue; check for poor water circulation or temperature stress
Bacterial Infection
Soft, mushy stems; foul odor; rapid decay of new growth; leaf discoloration
Remove affected plant parts immediately; increase water changes; ensure excellent water circulation and oxygenation; maintain cool, stable temperatures
Tips from the community 💡
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Quick Facts
- CO2
- recommended
- lighting
- high
- maxHeight
- 30–50 cm (12–19.5 in)
- placement
- background
- substrate
- nutrient-rich
- temperature
- 41–64°F (5–18°C)
Temperature
41–64°F
5–18°C