upgrading tanks

[Antwann carson]

I am upgrading from a 125 to a 220 how do I do this without starting a new cycle. Do I need to keep the sand. Thanks

 

[Reefing Madness]

Going to have a mini cycle, thats going to happen, won't be big. No, you don't need to keep the sand if you don't want to. You could however rinse it out well, and reuse it, but no, you don't need it.

 

[ZachsZoo]

Keeping the sand would help, but if you just put in the water it would be like doing a 50% water change.