Habit, plant type:
Botanical name [?]: Rotála wallíchii
(Hook. f.) Koehne
Major group (unranked):
Seed plants: Flowering plants (Angiosperms)
Rotala wallichii is an elegant stem plant originating from soft, slightly acidic waters in South-Eastern Asia. Its inflorescence has bright purple flowers. Even though it is not quite easy in cultivation it is a highly popular plant.
R. wallichii needs lots of light, CO2 fertilisation and a well-balanced supply of nutrients to grow well. The light intensity should at least be 0.5 watts per litre in order for it to attain intensive colours and to support growth. A good supply of CO2, either with bio CO2 or a system using pressure bottles is indispensable. Rotala wallichii grows best if the nitrate level never falls to zero but does not exceed 10 to 15 mg per litre either. A high phosphate content of 1-2 mg per litre is preferred, as well as a good supply of iron and micronutrients.
Under optimal growth conditions this plant rewards its keeper with stunning colours, ranging from intense pink over orange to deep red foliage with a diameter of 2 cm and more.
This Rotala species forms opulent finely-structured groups growing upwards. Those plant parts closest to the surface develop the most intensive colours and throw a large number of lateral shoots. If R. wallichii grows too large for your tank design you can just cut off the uppermost part and re-plant it in the substrate. Propagation is done by cuttings of top and lateral shoots. They grow new roots very fast if re-planted in the substrate and start growing again.
Colourful R. wallichii is used in Nature Aquaria and in Dutch-style tanks. It is a great red accent plant for the middle- or background of an aquarium. In order to get the best effect, three to five stems should be planted at a time so they grow to form beautifully dense groups.
This plant is a part of the following tanks:
Aquascaping: fine-leaved, very colourful plant for accents
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||medium to high
||15 to 30 °C
||24 to 28 °C
||0 to 12 °dKH
||5 to 7
|Carbon dioxide (CO2)
||20 to 40 mg/l
||10 to 50 mg/l
||0.1 to 3 mg/l
||5 to 30 mg/l
||0.01 to 0.5 mg/l
Cuttings Can grow emersed?:
Suited for outdoor cultivation / ponds:
There is no detailled information for cultivating this plant yet.
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