Hypnaceae

Taxiphyllum alternans 'Taiwan Moss'

Taxiphyllum alternans

A variety of:Taiwan Moss

A creeping moss known in the aquarium hobby as 'Taiwan Moss', though whether it actually grows in the wild on Taiwan is unclear; it has been identified as Taxiphyllum alternans. Very similar to Java Moss, but branches more densely and regularly.
Light
low
Difficulty
very easy
Height
3 – 10 cm (1.2 – 3.9 in)
Temperature
12 – 30 °C (54 – 86 °F)

Tank conditions

Leaf colour
green
Plant type
epiphyte
Growth rate
slow
CO₂ demand
low
Tolerates light
low – high
pH
5 – 8
Carbonate hardness
0 – 14 °dKH
General hardness
0 – 30 °dGH
Placement
on stone and wood, nano tank
Propagation
division, daughter plants
Grows emersed
yes

Care and keeping

Appearance

Shoots branch fan-wise, triangular in outline — like Christmas Moss, but this one looks finer. It differs from Java Moss by branching more densely and regularly under good light; under a microscope, the Taiwan moss has marginal leaf teeth only near the tip, while the Java moss has them along the whole margin. It differs from the mosses 'Spiky' and 'Peacock' (Taxiphyllum sp.) by shoots that feel thinner and softer — theirs are sturdier and wider. It differs from Christmas Moss by narrower leaves that do not stand out from the stem at nearly a right angle, and by feeling noticeably softer; Christmas Moss has wider, partly rounded leaves that narrow sharply into a pointed tip.

Keeping

Very easy: growth slow, light from dim to strong, CO₂ 10–40 mg/l, temperature 12–34 °C. Propagated by division.

Placement

Tied to hardscape, nano aquarium.

Trade names

In the wild it grows in temperate zones and adjoining areas at the edge of the tropics — in the southeastern United States and East Asia, on soil, exposed roots, rotting wood in swamps, and on rocks by streams and waterfalls. In the aquarium hobby it is known as 'Taiwan Moss'.

Fish and this plant

Matching water does not mean the fish will leave the plant alone.

Scientific and other names, conservation status

Other scientific names
Gollania cochlearifolia, Isopterygium alternans, Isopterygium alternans puteanum, Plagiothecium azumense, Plagiothecium brevicuspis, Plagiothecium calyptothecioides, Plagiothecium sadoense, Plagiothecium turgescens, Taxiphyllum sadoense
Taxiphyllum alternans
(Cardot) Z. Iwats.
Family
Hypnaceae