Using water from already established tank to help speed up the cycle

[blueturq]

If I use some water from an already established aquarium and use it on a new aquarium would it not work?

It's not like there would be much of an ammonia spike, since your basically taking water from another tank, aswell as already established gravel and already established filter media, right?

So let's say if I dismantle a tank completly, and use all of it's contents and use it in my new tank, is it not considered cycled?

I would like to hear any input from you guys.

 

[Ems]

Are the tanks the same size? To help cycling, we put gravel from an established tank into a new one, but it doesn't automatically make it cycled, I feel that it helps out though.

 

[gsk177]

If you took all the filters, media, gravel and water from one 20g and put it in another 20g, then yes, it would be considered cycled....as long as the bio load stayed the same.

If you put all the stuff from a 20g into a 55g and added the same bio load, again, yes it would be considered cycled as long as the new water coming into the tank to fill it up was equal in parameters to the existing water.

I think you would have to either go to a much bigger tank or go overboard on the bioload to have cycling problems. Just make sure you take due care in protecting the existing biologicals.

If I am mistaken, I am sure someone will correct me.