New tank

[ndw]

Can I use some of the water from another fully established tank to put into a new tank to start off the cycling

 

[serena00]

Yes but I suggest using your established filter with your new filter as this will work better to get your cycle in the new tank.


36g semi-aggressive
20g community
5.5g betta/ghost shrimp
3g betta
2g fry

 

[ndw]

But I need the established filter in my tank that it's in now Or am I missing something?

 

[serena00]

Okay then if it was me I would put your new filter on your old tank for a week. (Therefore there will be two filters on this established tank) it will give time for your bacteria to get in the new filter as well.


36g semi-aggressive
20g community
5.5g betta/ghost shrimp
3g betta
2g fry

 

[mikem691]

Old water will do next to nothing. Squeeze the filter into the new one or use a piece of the established filter in the new filter. almost all your BB is in the filter media.