my tank crashed a while ago and i need to set up a quarantine tank immediately. would benificial bacteria be enough for my fish? They’re in one right now but the water quality isn’t great I did a waterchange about 45 minutes ago and tested the water and the nitrites still seemed to be high. Ph is ok Ammonia is 0. Everything else is ok. I’m newer to the hobby and i am not sure what to do. The fish are eating and they seem okay but they’re breathing a little heavy for my comfort and they seem to be twitching a bit. It’s definitely a bit overcrowded which is why i wanted to set up the new tank to separate some fish. Anything helps