I started curing some more dry live rock in an extra tank. I started with extra "live" sand I was using in my main tank but didn't want to through it out for some reason (hoarder lol). My question is, keeping that old sand (about an inch thick) a bad idea or a good idea? I was thinking it might be a good thing because the beneficial bacteria that was in the old sand would aid in the curing process? Or should I take out that sand when I do a water change after the water gets :barf:?
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