This w save a huge read hours to get a six line summary lol:
can use much less chemi clean when the tank is clean, use it as growback prevention if the clean doesn’t fix it. Better than mass kill plus internal rot, less can be used in the clean state.
if you are using any degree of normal live rock, then removing your sandbed all at once wouldn’t even matter. This is 150 of the few hundred jobs in the thread. Live rocks handle sand removal just fine, we never remove in sections, that offer got made up one day and stuck in the hobby, we remove our sandbeds all at once for the bare bottom request jobs. We never remove sand while water is in the tank
the tank is taken down first and fish are in buckets.
your sand would be rinsed in tap water until 100% clean. Then ro at the end, don’t waste ro on expendable surface area you don’t need, use tap so you can get clean. It takes probably sixty gallons of rinse water to clean a sandbed from a nano, you’ll see. Tap then ro
dont get clouding in contact with fish or corals as you take down for cleaning, be surgical and isolating sensitives from waste clouds.
reassemble all new water. Perfect sand. The same rocks which you swished off in saltwater clean of the cyano then a quick mist of peroxide on the clean surfaces to hit leftover cells go back in on the sand. Will not harm your filter bac, peroxide doesn’t.
add back fish and corals
if your anemones are attached to rocks then just twist them in saltwater so the cyano comes off and skip the peroxide on that rock. You are simply re assembling a totally clean nano knowing the bacteria on the rocks are always enough, what you do to sand doesn’t matter as long as it’s not under done.
lastly, ramp your lights down to half power and come back slowly in the clean tank.
any chemi clean you dose to a reef that has cyano, which is fueled by waste in the rocks and sand, simply kills off the top coat to make another layer of waste. If the tank is new, then it can store several layers before gha kicks in but not for long
rip cleaning helps prevent dinos and gha and other issues at the same time you are forcing your tank to look like you want. We’ve simply removed the fear of losing bacteria, that’s been over hyped, rip cleaning makes for sharp nanos.