Glossostigma Elatinoides

Glossostigma elatinoides

Glossostigma Elatinoides (Glossostigma elatinoides)

Lighting

High

CO2

Required

Growth Rate

Fast

Max Height

3 cm

Placement

Carpet

Substrate

Rooted

DifficultyAdvanced

About

Native to New Zealand and parts of Australia, Glossostigma elatinoides is a tiny aquatic plant with distinctive spoon-shaped or spatula-like leaves that sit on thin, creeping runners. When conditions are right, it forms one of the densest and lowest carpets possible in a planted tank, barely reaching 1 to 3 cm tall. That's exactly why Takashi Amano made it famous.

The catch is that it absolutely demands high-intensity lighting and injected CO2. Without both, it abandons its carpet habit and shoots straight up toward the light, which looks terrible and defeats the whole purpose.

Plant it in small clumps spaced a few centimeters apart and let it fill in, trimming regularly to encourage lateral spreading over vertical growth. It spreads via runners once established and can eventually overtake the foreground if left unchecked. Nutrient-rich substrate makes a real difference here since the roots are doing a lot of work.

This plant rewards patience and precision, and seeing it finally knit together into a seamless green mat is genuinely satisfying. Search out scape journals from experienced aquascapers to see what it looks like at its best.

Water Parameters

Temperature

°C
15–28
15202530

pH

5.5–7.5
56789

GH

dGH
2–12
05101520

Compatibility

Herbivore SafeNo
Burrower SafeNo

Care Notes

The most common failure is insufficient light causing vertical growth instead of carpeting. Trim early and often to push energy into runners rather than height. Don't plant it in large clumps, small plugs spaced out will carpet faster. Algae is a constant threat when this plant is establishing since it grows slowly at first. Soft, fine substrate helps root development significantly.

carpetforegroundhigh lightCO2 requiredadvanced

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