There's a sign that's all fish a little later on, but that's an artist's sign. Apparently it's because Capricorns are determined at going places they want to, like a goat climbing a mountain, but sensitive underneath, like a fish going with the currents.

Active between December 22 - which is the twelfth and last month of the year for some reason despite being the tenth sign - and January 19, which is the first.