Temporary Downsizing

[Ronnie Burda]

I am in the process of moving in the next month to a new house. I am getting a Biocube 32 to use for a temporary aquarium. I currently have a 75g aquarium with 80 lbs. of live rock and about 2"-3" mixture of crushed coral and live sand in the bottom. I will be selling the 75g and after the move will be upgrading to a 120g or 150g tank. My question is to avoid any cycle issues in the Biocube can I just take some of the sand and a couple of the live rocks from the 75g and put it in the Biocube? Also use the water from the 75g or just half and top off with new saltwater?

 

[Jon Fishman]

It is my understanding that you would want as much of the live rock as possible and a really thick substrate base. also re-use all your filter media or bioballs or whatever you’re using. I would be inclined to do a water change, and wait a couple days and then siphon all of the water from the old tank to be used in the new one.