It’s a long story, it begins with me discovering a crack in one of my two tanks, this one housing my crossback arowana, immediately I panicked and began draining my second tank, which was holding a large walking catfish(in extremely poor conditions with no filter bc they can survive anything), which was only staying there to be fed good food until i felt it was good enough to eat(it was caught from a polluted river). I drained the tank with the catfish(some water still left), netted out all debris, and then added all the water from the cracked tank to the other, i then transferred the filtration as well as the decor and fish. Immediately after I noticed my aro was trying to eat smt(a good sign I think), but a few hours later I noticed my aro opening and closing its mouth slightly to breath. I did a water change and added salt accordingly, not sure what else I can do. I’m pretty sure this is the result of an ammonia spike from the polluted water. Only fish that is doing absolutely perfect is the snakehead ofc(tank is in storage I was in a hurry). Any other suggestions I will take.
