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PlantintermediateFreshwater

Hemianthus Glomeratus

Hemianthus glomeratus

PlantaeTracheophytaMagnoliopsidaLinderniaceae

📍 Cuba, Caribbean

Ask Finn

A delicate stem plant with tiny, round-to-oval bright green leaves growing in whorls of 3–4 around thin stems. Often confused with H. micranthemoides but has slightly larger leaves and a more upright growth habit. Grows quickly with CO₂ and high light, producing dense, bushy clumps that work well as a background planting. Without CO₂ it grows slowly and may become leggy. Regular trimming encourages compact, lush growth.

Common Diseases

Nutrient Deficiency

Symptoms

Yellowing leaves, stunted growth, pale coloration, and leaf loss despite adequate light

Treatment

Increase fertilizer dosing (macro and micronutrients), ensure CO₂ supplementation, and verify substrate quality. Test water parameters and adjust fertilization schedule accordingly.

Algae Overgrowth

Symptoms

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

Treatment

Reduce photoperiod to 6-8 hours daily, increase water changes (30-50% weekly), add algae-eating fauna (Amano shrimp, Otocinclus), and ensure adequate CO₂ to outcompete algae.

Melting

Symptoms

Rapid leaf deterioration, stem softening, and plant collapse after introduction to tank

Treatment

Gradually acclimate the plant over 2-3 weeks, maintain stable water parameters (pH 6.0-7.5, temperature 20-28°C), and ensure consistent fertilization and CO₂ levels.

Root Rot

Symptoms

Blackened or mushy stems at substrate level, foul odor, and plant detachment from substrate

Treatment

Improve substrate drainage and water circulation, increase water change frequency, trim affected portions, and ensure nutrient-rich substrate with adequate aeration.

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Quick Facts

co2
Recommended
light
Medium to high
max size
15–30 cm (6–12 in) tall
placement
Midground to background
substrate
Nutrient-rich substrate
growth rate
Fast (with CO₂)

Water it likes

ph
6.0–7.5
notes
Distinguished from H. micranthemoides by its whorled leaf arrangement and slightly larger leaves.
hardness
0–12 dGH
temperature
154–180°F (68–82°C)

Stats

Community tips0
Growing in0 tanks