AquaSage
Species library

Small Mud-mat

Glossostigma elatinoides

Phrymaceae

PlantsDifficulty: ●●●●Data: well-established
Small Mud-mat — Glossostigma elatinoides
📷 Shaun Lee · CC BY 4.0 · resized · iNaturalist

About

The carpet Takashi Amano made famous, known in every aquascaping shop simply as glosso: paired spoon-shaped leaves a few millimetres across, carried on runners that creep flat over the substrate at only 2-3 cm tall. It is genuinely demanding. Given strong light and injected CO2 it runs sideways fast enough to close a foreground in weeks, but under weak light it gives up carpeting altogether and climbs vertically on lengthening stalks - the single most common way this plant disappoints its buyer. It also has to be cut back: an untrimmed mat stacks into layers, the shaded base rots, and whole sheets tear loose and float up.

Care

Plant small clumps a few centimetres apart in nutrient-rich soil, under high light with pressurized CO2 and steady macro plus micro dosing. It grows best at 22-26 C. Trim every one to two weeks - a thick untrimmed mat loses its grip on the substrate and lifts off.

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Frequently asked questions

What water parameters does a Small Mud-mat need?
Small Mud-mat does best at 4–30 °C (39.2–86 °F), pH 4.5–7.5 and a general hardness of 2–15 °dGH.
Where should Small Mud-mat be placed in the aquarium?
Small Mud-mat works best in the foreground and reaches around 5 cm.
Is the Small Mud-mat suitable for beginners?
Small Mud-mat is a demanding species best attempted with some experience — it needs stable, closely watched conditions to thrive.

Sources

Water & tank

Temperature4–30°C
Optimal temp.22–26°C
pH4.5–7.5
Hardness (GH)2–15°d
Carbonate (KH)0–14°d
Water typeFreshwater
FlowModerate
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