Piscon

 were a species that were related to the Pescatons.

They resembled angelfish with deep black strips over their heads and fins.

The sun of Piscos exploded turning the Piscon home world into a desert world. They went round the universe finding sources of water, mostly from uninhabited worlds, but some such as Zarl took it from inhabited worlds, like the Earth. (AUDIO: Peri and the Piscon Paradox)