Oh my goodness......
Why would you want to deliberately hurt the fish you just purchased? To each his own I guess...
All you needed was PRIME to detoxify the ammonia, and more patience.
Did you honestly put all those fish in the tank?
Oh, I absolutely wouldn't want to harm them.. My ammonia is a zero, and the crayfish appeared very healthy.. I've been taking readings regularly and adding insane amounts of ammonia, only to have it read zero when tested again.. I suspected something was wrong with my brand new test kit, so I put some ammonia in a cup of water and tested it, and it was through the roof!! GREEN!!!
I did put all those fish in there, and today we took a trip. We just returned home at 22:00, and it looked like a massive amount of die-off of the guppies, because there were 5 down on the bottom of the tank in the gravel... Now get this-this amazed me.. I unplugged the UG filter, and the fish are all swimming around, apparently healthy as could be.. I NEVER would have thought that an undergravel filter pulled like that!!! It's as if they were being held down to that bottom of the tank..
Anyway, they entire tank is swimming lively and eating, but the one guy I did lose is one of the crayfish... The guy who just molted was upside down when I got home.. Can't figure that one out, as they are supposed to be pretty hardy..
I did an immediate ammonia check, and it's still 0-0.25.
While I was typing this, a gourami just swam through the log on the bottom of the tank! Those guys have to be the best fish to watch, as they occupy all levels of the tank! They just go wherever they want, and they chase each other around... That was funny, but that's the crayfish's hide-out, so I hope he doesn't go through when the crustacean is home!