The variety ‘Red Ruby’ is a very pretty new cultivar which is a type of Alternanthera reineckii. The most noticeable feature is the ruby red venation on the leaves, which stands out clearly from the red background colour. The growth rate is a little slower than for A. reineckii ‘Red’ and ‘Bronze’. This means with good lighting you can also cultivate this red beauty in a 30 l cube. In large aquaria you should plant around 15 – 20 stems to achieve an impressive group of plants, which harmonises best with “green” neighbours.