I'd just like to point out that you can Aetherial Reduce certain collectable fish with absolutely no "skills"
You just fish them up and reduce them.
You literally reel in the fish, then click reduction and instant clusters.

They give between 45-60 Clusters.

There's no skill exploit or unintended effect happening here.
This is exactly what Aetherial Reduction is for and working exactly as they intended it to work.