complete teardown

[SeaHorse_Fanatic]

Have to concur. Too many Canreefers have posted how they reused their old sand only to have it come back & bite them in the @ss because of Nitrates & Ammonia spikes. I always like to add a few cupfuls of old live sand to each new tank but a whole load would be too risky, even if it's washed. I know, I know. Not what you wanted to hear (or read).

Good luck with whatever you decide to do.

Anthony