Hello everyone. 
I dont understand how you're supposed to get ammonia, nitrite and nitrate into a tank?
If i took some gravel out of my goldfish tank and put it into my new tank will it add some ammonia, nitrite and nitrate?
i will cut some of the sponge in the filter for some bacteria to get into my tank but im not too certain how im supposed to get the other things into the tank.
Does water bring any of those to the tank as well?
I dont understand how you're supposed to get ammonia, nitrite and nitrate into a tank?
If i took some gravel out of my goldfish tank and put it into my new tank will it add some ammonia, nitrite and nitrate?
i will cut some of the sponge in the filter for some bacteria to get into my tank but im not too certain how im supposed to get the other things into the tank.
Does water bring any of those to the tank as well?