Once I brought home and began washing out the 10 gallon tank I purchased from the person I found on Craigslist, I realized that the silicone connecting the glass panes was coming off. I went out and bought a new ten gallon tank from my LFS. Fortunately the stand, HOB filter, heater, hood, and light I purchased in addition to the 10 gallon for the same $50 was all in good shape.
I picked up a tap water deionizer at the LFS but unfortunately it didn't fit any of my faucets even with the included adapters so I had to settle for tap. I added 1 cup of instant ocean sea salt to each of the 5 gallons of water I added to the tank to bring my specific gravity to ~1.009 according to my hydrometer. I know, I need a refractomemter. I added 10 ml of Stress Coat and 1/2 teaspoon of Seachem Marine Buffer to the first 5 gallons. I also added 1/2 teaspoon of PraziPro as a preventative measure. I probably should have slowly lowered the specific gravity in the tank over the course of a few days, but it's day #2 and the 4 yellow tail damsels I bought seem fine.
I think I recall reading that it's only when increasing the salinity that it's important to do it gradually. Is that true or does it need to be done gradually both ways?
Anyhow, after years of resisting, here is my quarantine tank.
It wasn't pretty, but I even managed to convince my wife to let me put it beside our display tank so that I could see them from our living room.
Only 5 weeks and six days to go...