How Quickly Can I Move My Fish Into A Tank

[Declan]

Hi all.

I have 6 Cobra Guppies and 2 Female Fighters, and they have been fine with each other for about 2 months, then last night my friend came round with 2 more Female Fighters and they dont get on with my Guppies, and I have an old 25L tank that is un-cycled and it has everything I need, filter, heater, gravel, ornaments etc..

How quickly could I put the Fighters in there, I am not bothered about extensive regular water changes..

Thanks in advance!

D.

 

[WILDER]

You could fill the tank up with the main tank water.
You could also take some mature filter sponge from the main tank filter if the filtered matured.
Match ph and temp.