Starhorn / Hygrophila auriculata

Hygrophila auriculata

Plantae›Tracheophyta›Magnoliopsida›Acanthaceae

📍 Africa, South Asia

Distinctive for the sharp, spine-like stipules at each node that give it a starfish or thorny appearance. The leaves are narrow and light green. While not commonly seen in the trade, it creates a striking architectural element in natural-style aquascapes.

Tank Mates

Otocinclus

Peaceful algae grazers that won't damage plant leaves and help maintain tank cleanliness

excellent

Red Cherry Shrimp

Gentle invertebrates that graze algae without harming plant tissue; thrive in planted tanks

excellent

Neon Tetra

Small, peaceful schooling fish that add color without uprooting or damaging aquatic plants

good

Anubias Barteri

Excellent companion plant with similar care requirements; creates layered aquascape depth

excellent

Java Fern

Low-maintenance companion plant with complementary growth form and nutrient needs

excellent

Dwarf Gourami

Peaceful mid-water swimmer that appreciates planted tanks for shelter and won't uproot plants

good

Common Diseases

Nutrient Deficiency (Iron/Macronutrients)

Symptoms

Yellowing or pale leaves, stunted growth, loss of vibrant coloration, particularly in new growth

Treatment

Increase fertilizer dosing with comprehensive all-in-one solutions or targeted macro/micronutrient supplements; ensure adequate CO2 and lighting

Algae Overgrowth

Symptoms

Green or brown algae coating leaves and stems, reduced light penetration, plant appears smothered

Treatment

Reduce lighting duration to 8-10 hours daily, increase water changes, add algae-eating fish (Otocinclus) or shrimp, improve water circulation

Melting (Tissue Decay)

Symptoms

Leaves become translucent, mushy, and disintegrate; stems soften and collapse

Treatment

Improve water quality with frequent partial water changes, ensure adequate CO2 and nutrients, check temperature stability (maintain 22-28°C), remove affected portions

Slow/Stunted Growth

Symptoms

Minimal new leaf development, small leaves, pale coloration despite adequate lighting

Treatment

Verify CO2 levels are adequate, increase fertilizer dosing, ensure substrate contains nutrients or add root tabs, confirm lighting is medium-high intensity