The Water Predators are another aggressive grendel breed by Risen Angel. They are amphibious and can swim with the aquanorn swimmeragent. They are similar to the Water Element Norns due to the fact they do not feel homesick when in the sea. Babies are peaceful, adults will hit aquatic norns and ettins simply because they're bored. But keep them separate from the norns and ettins, and they make a nice addition to any aquatic ecosystem. If you are playing with them in DS, the best metaroom to keep them in is the Aquatilis Pod or Aquatilis Caverna. C3 is required to see them properly, because the sprites are of the Jungle Grendels.
They are currently available from Grendel Man's section in the Norn Adoption Center, and at KnyteTrypper's C3/DS Nexus.
A third version was released for the CCSF 2010 and is available at The Realm.