I've been farming organs in Sea off and on for about the past month, and I nearly have all the organs I need to complete 5 obis (Dark, Lightning, Ice, Earth, light). I've hit a snag though. Despite all the wildlife I've exterminated in At'Taieu, not a single Luminian Tissue has dropped. I still need 13 more tissues to finish the obis I'm currently working on.
I do have two tissues, but to the best of my knowledge, those dropped while I was helping a friend learn BLU spells from the Euvhi in the Palace. Is this the best place to farm them?