Restarting after entire tank hit hard by Bloat/Parasites

[Uaru]

I posted a few weeks ago that I had a 55g grow-out tank ravaged by, my best guess, Bloat. All of the fish died off, except for one, which is now recovering (nicely) in a hospital tank. I treated the tank with salt and seachem paraguard for a little under 2 weeks, while the remaining fish was still in there.

Parameters:
Ammonia: 0 ppm
Nitrite: 0.15 ppm
Nitrate: 0 ppm

So, how long should I wait until I start stocking with fish again?

 

[Aquanero]

If you are showing a nitrite reading the tank hasn't finished cycling yet. I would wate until the tank is cycled or add one fish at a time so the bacteria has a chance to catch up with the bio-load. Adding too many fish at once will overwhelm the BB and cause an ammonia spike. If you add one samll fish it should speed up the cycle while not being too much for the established bacteria to handle. Test the water daily and change as necessary to keep the numbers low while the BB establishes. If you have some filter media from an established tank it will speed up the process considerably other wise it could take about 6 weeks in an empty tank. When adding fish feed lightly.

 

[Uaru]

Thanks, Tom. Good deal, yeah I'll need to get my parameters stabilized again, because in the process of treating and water changes, I vacuumed plenty of substrate out of the tank. Just wanted to make sure there wasnt a certain amount of time I needed to wait to make sure the parasites were dead and gone. I appreciate the help.