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Radican Marble Queen Echinodorus cordifolius '' This is a number one choice for the place of honor in the aquarium. The color composition of the leaves is very special and goes from deep green over green to yellowish to produce a marbled leaf surface. However, the marbled look is usually lost at low light conditions and is therefore suitable for small open aquaria which in general receives enough light. Much like Echinodorus cordifolius the growth is fast but Echinodorus cordifolius 'Tropica Marble Queen' tends to stay in the aquatic environment much longer before it sets emergent leaves. The plant benefits very much from a nutrient rich substrate and from CO2 enrichment of the water. The origin of the plant is up to now unknown but it comes from the Oriental Aquarium in Singapore where it may have aroused from a hybrid between Echinodorus cordifolius var. ovalis and Echinodorus cordifolius 'Gelb'. Alternatively, we have here a natural mutation.
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