sorry such a delayed response. I've been on the road travelling for work with the roommate watching the tanks between trips.
Thank everyone so much for your help and input! The big fat Ornate has healed! the white patches are now back to regular coloration. The ornate pattern is a little off in those spots if you really stare but the scales are back and it's active like I've never seen before. My other Bichirs are a little lazy, motivated by food and commotion but this one never stops moving all through the water column. Is this normal? It's been powerfeeding nicely on shrimp, tilapia, massivore, algae wafers (loves them!) and frozen and chopped striper bass chunks. It has grown a bit longer and gained a ton of girth. It didn't eat for two weeks with the bichir worm issue, I guess it's making up for lost time. About as big around as a soda can now.
Thanks everyone for helping save my fish!