Sharing my pain

[Aquattro]

Originally Posted by ree-fready

DSB removal, could that have activated the reaction and do you use a substate now or bare bottom?

Yes, I believe this is triggered by the removal of the sand, but I'm not sure why. I currently run about 50 pounds of sand, although some is 2" deep and other spots is almost bare. I am familiar with tanks that had sand removed that didn't do this, so....
I borrowed a UV unit today, so maybe that will assist a recovery. Not sure what else to do, other than wait and hope.