Dan it is time to intervene we know how to save tanks like this. You'll have to do the #1 thing you dont want to do, to save the tank, n (re clean it all with new water) waiting will not work it will be a slow loss cascade.
Removing your sandbed didnt cause this
leaving clouding did, we didnt catch your move preps in time to run them through the sand rinse thead, then you would have set up cloudless, and lost nothing.
read these examples for how to fix your tank in time before total loss. this is the price of big tanking, having to redo the cleaning aspect in order to save it.
100 sandbeds fully removed without one loss
If you are reading this thread to cure a tank invasion from a link I sent you, we do not need to identify your type of invasion here we do not need you to test anything at anytime regarding nitrate, phosphate etc Above all, we do not need to see a microscope slide picture of your invasion at...
www.reef2reef.com
what they have in common is cloudless setup using all new water
here is the most recent example of a big tank rework using cloudless reassemble
I’ve decided to perform a rip clean on my 120 with 100% new water. The tank has been running for 5 years and was battling Dino for several months. I used the bacteria method from elegant corals and worked great I haven’t seen Dino in months now. But I tried several other methods including...
www.reef2reef.com
both of those threads use the principle of cloudless rebuild to get what they get as after pics, when you mentioned clouding a couple weeks ago I sensed an issue coming up. the tank is going through something called eutrophic shift; what we do is the single best way to cause oligotrophy which is the clean uninvaded vibrant reef condition.
take no shortcuts, wait no longer, those two threads have fix after fix documented.