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</html><thumbnail_url>https://blog.tetra.net/en-en/wp-content/uploads/2019/03/Guppys_Fotolia_73283646_X_1000x550.jpg</thumbnail_url><thumbnail_width>1000</thumbnail_width><thumbnail_height>550</thumbnail_height><description>No two male guppies are identical. They each have a unique tail, which makes them truly eye-catching in aquariums. They are particularly exciting to watch at breeding time. Even the courtship display that male guppies (Poecilia reticulata) put on to impress the inconspicuous females is an impressive show: the males fan out their colourful tail [...]</description></oembed>
