Originally Posted by peterwins
i dont get rthis at all why do you add aroma? thats bad for the fish.
Fish create ammonia so you have to have bacteria in the tank to eat the ammonia & make it into less harmful stuff to the fish. It takes a while to get the bacteria to grow, though, and if you put fish in too soon they'll die before the bacteria grow.
So before you put in fish you add ammonia to the tank so that the bacteria starts thriving & then, after a few weeks, you're ready to go.
If you want to speed it up you can ask a friend who has fish already for some of their stuff from their filter.