I noticed a few days ago that one of my neon tetras had developed ich. I researched the salt/heat method of curing ich and decided to try it because I thought it would be better for my tank than chemical medications.
I have 2 x 10 gallon planted, cycled tanks
5 neon tetras
3 peppered cory catfish
1 panda cory catfish
1 mystery snail
I had all the fish in 1 tank at the time (I had gotten 2 panda cories for the 2nd tank, 1 died so I moved the survivor because he seemed incredibly lonely all by himself).
When i discovered the sick tetra, I moved all the catfish and the snail into the 2nd tank because none of them had spots yet. I raised the temperature in both tanks to 87 degrees. In the tank with the spotted tetra I dosed it with 5 tsp of salt on day 1, and 5 more tsp of salt on day 2 (total of 2 tsp per gallon of water). That was on Sunday and Monday. I have not added more salt and I haven't done any water changes to allow the salt and heat time to work. Today I plan to do a 25% water change in the evening, since I can no longer see any spots on any of the tetras (a few more had developed spots by the time I treated with salt).
In the tank I moved the cats and snail to, I did 1 dose of 5 tsp of salt on day 2 and haven't touched it since (my reasoning was that if they didn't have spots YET, they were probaby coming but didn't need such a large dose of salt). No spots have emerged, they seem overall healthy and happy.
My question is how long I should wait after the spots disappear to lower the temperature and start removing the salt water from the tank. I've found lots of advice on how to use this treatment method, but none that give very helpful time lines.
I have no spots in either of my tanks, this is day 2 of that. How much longer should I wait before I start doing large water changes to remove the salt and lower the temperature? I eventually would like to split up the fish and add a few more so I have 2 well stocked 10 gallon tanks instead of 1 overstocked tank, how long should I wait to add more fish?
Both tanks have live plants, aquaclear 20 filters, gravel substrate, and normally the water parameters are all in the ideal ranges. There was a slight nitrate spike since adding the salt water, but that was only yesterday and I haven't retested today.