Rotala macrandra 'Green Narrow Leaf'

Rotala macrandra

A narrow-leaved green form of the giant red rotala: the leaves are elongated, narrower and longer than in the similar Rotala rotundifolia, and sit strictly in pairs. It grows fast and adapts easily to underwater life.

Light: high
Difficulty: difficult
Height: 30 – 40 cm (12 – 16 in)
Temperature: 18 – 30 °C (64 – 86 °F)

Leaf colour: green, red, pink or purple
Plant type: stem plant
Growth rate: fast
CO₂ demand: high
Tolerates light: medium – high
pH: 4 – 7
Carbonate hardness: 0 – 12 °dKH
General hardness: 0 – 30 °dGH
Placement: red accent, background +4 red accent, background, midground, Dutch street, nano tank, foreground
Propagation: cuttings
Grows emersed: yes

Appearance

The leaves are elongated, narrower and longer than in the similar Rotala rotundifolia, and sit strictly in pairs (in R. rotundifolia, in groups of 2–3). Above water it closely resembles Rotala rotundifolia. Under strong light the stems redden, and the leaves right at the surface turn slightly yellow. Height around 30–40 cm.

Keeping

Like all macrandras, it needs CO₂ and medium to strong light, but it generally settles in more easily than the red forms; opinions on its difficulty differ — some call it difficult, others medium. Growth fast, CO₂ 20–40 mg/l, temperature 24–28 °C.

Water conditions match

The water suits 841 of 1249 species in the catalogue — these are the ones people look up most often.

Butterflyfish Julii Corydoras Red-finned Parotocinclus Gastromyzon monticola Egg-shaped Goldfish Flame Tetra Gardner's Killifish African Tetra Hypsolebias picturatus Common Zacco Labeo Bicolor Gambusia Flying barb Gastromyzon scitulus Albino Zebra Danio Geophagus Brokopondo Homaloptera bilineata Red-tailed Rasbora Boraras naevus Lampeye Killifish Spotted Raphael Catfish Corydoras melanotaenia Festivum cichlid Pseudomugil paskai

Will eat this plant

These species damage plants, especially when their diet is short of vegetable food.

Bengal Loach Zebra Loach Burmese Border Loach Emperor Botia Marbled Headstander Pellegrin's Leporinus Leporinus striatus False Black Tetra Common Metynnis Mylossoma duriventre Red Whiptail Catfish Moonlight Gourami Melanotaenia parva

Will uproot it

These species dig through the substrate and pull rooted plants out.

Marble Loach Peacock Eel Forktail Loach Guntea Loach Long-nosed Loach Horseface Loach Pearlscale Black Moor Goldfish Shubunkin Painted Pleco Featherfin Synodontis Reddish Mystus Catfish Blue Acara Geophagus altifrons Geophagus winemilleri Pearl Cichlid Red-spotted Cichlid Haplochromis philander Red Chromide Jack Dempsey cichlid

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

Scientific and other names, conservation status

Other scientific names: Rotala rotundifolia macrandra
Rotala macrandra: Koehne
Family: Lythraceae
Conservation status: LC