How is the skimmer running? If so the alcohol should be out in a few days. If you quit dosing you will see a decline in the bacteria so ther may be an uptick in your numbers for a few more days. I would say
after a week you should be good.
I just finished doing a deep clean to my tank. In a perfect world your system would keep itself in balance. If we were perfect over the long term we wouldn't be in the current global crisis. Personally I would leave the tank as is for a few weeks. Do water changes with RO water not tap. Include testing every two-three days and track your progress. If you see a decline then continue. If an increase then more water changes, more cleaning, pull rocks from the display and rinse them thoroughly with salt water. Make your way through the tank and check your hoses, pumps, sumps, and sand.
When I rinsed my sand last week the water was black, after eight rinses I was down to clean water.