Is this a bad idea?

[Aquattro]

lol, ya, I'm going the exploding 90 route, but I want to build all new structures from the new rock. I suppose I could add some of the existing rock around the bottom, but 50 pounds in the sump should be enough, I think. Coupled with the new rock (about 130 pounds), I should be OK bacteria-wise...I think

[reefwars]

I used prodibio when I swapped tanks , I used stability for the move and strat up throughout the next week or so never had any issues done it all in a few hours.

[sphelps]

Consider moving some of the sand as well if you can do it without making too big of a mess. Tons of bacteria there.

[Aquattro]

Originally Posted by sphelps

Consider moving some of the sand as well if you can do it without making too big of a mess. Tons of bacteria there.

Current tank is BB

[christyf5]

I've upgraded a couple of times and frankly as long as you're not adding uncured rock you're good to go. All you're doing is increasing water volume so unless you're adding a crapload of new livestock to the new tank at the same time as you move the contents of the 90 into the bigger tank you're certainly not increasing the bioload. Even if the rock you have in tubs was dead you're still fine as you're just moving the same bioload from the 90 into a tank with more water. Its like doing a massive waterchange and everyone will be the happier for it (noting temp and salinity is the same of course).

edit: LOL, ok I just missed all of page 2 and basically repeated what sphelps said.

Carry on....