Originally Posted by doogle
i dont understand what exactly you are trying to do, you can place good bacteria in the tank but it will die if the tank has no ammonia to feed the good bacteria. so putting gravel or a filter from an established tank into a new tank is pointless without ammonia in it, something to think about.
That's why you use raw ammonia, fish food or a raw shrimp in a bare tank, because the bacteria isn't going to die in 5 minutes.
What he wants to do is pre stage a filter (etc) and use exisiting elements to create an instant cycled tank. Works fine if you have everything ready. I've done it 3 times in the last 2 months and the worst that happened was a mini cycle on the last one.