Nice big tank, which certainly helps...but even so, I suspect big problems on the horizon. Virtually all of those fish are just babies, and their aggressiveness will likely increase as their sizes do; and virtually all of them should be much larger at two years of age.
You have a 6-inch Redtail Cat together with 3.5-inch bichirs? Or, you may have had them together yesterday; have you counted your bichirs today? And a Redtail Cat should be in the 6-inch range at closer to two months of age, not two years. What's the game plan for when the cat is 3 or 4 feet long...and the dovii hit 2 feet...and the 14 other notoriously-aggressive large cichlids are a foot long and "breeding season" hits?
Again, this tank cannot have been operating with that population of those species of fish for very long; certainly not long enough to be considered a success, or to be used as an example.