So far on my List of Useful Fish have found 4 fish that are able to be broken down - Manasail, Pteranodon, Caiman and Tupaxuara. The trend is that none of those 4 fish are turn ins for blue scripts. I have a theory that they may be turn ins for red scripts, so I’ve been keeping my highest collectability ones and only breaking down the lower ones.

I have not caught sufficient numbers of them to do much testing as to the collectability rating compared to the purity of the Aetherial Reducution. I have caught about half a dozen Manasails and breaking down the lower collectible ones have given me only Ice Crystals and Clusters. A friend has gotten Dawn & Duskborne Aethersands from some Tupaxuaras.

That said, it's only 4 fish so far and that's not a lot