Last Ich Spot Gone

Hi. I went through 5-6 days of dealing w/ ich. The good news is the last white spots have disappeared. Yeah! But now I'm not sure what to do.

Yesterday I did a water change vacuuming up the gravel. I replaced the salt I had taken out with salt so the tank has the same amount of salt as previous. I did lower the temps from 84-85 to 82-83.

My questions are:

1. How long do I continue the ich treatment now that the white is all gone?

2. Do I continue the ich treatment with the temp in the 80s or can I lower back to 78?

3. I left the same amount of salt as recommended (2 tsp per gallon). Should I be lessening the amount of salt now?

Thanks!

Okay, thanks for the info. Here's the saga:

At first I was tempted to buy ich meds but I discovered the ich at 2am and couldn't go to store--so I came here, read about salt. I used regular table salt (without iodine) because that's what I had.

I mixed 40 tsps (for 20 gallon) in one gallon pitcher and slowly poured in it in 3 batches. I bumped up the temps on the heater to 84 but it took about 2 days to get it up to 84-86 range. Normally I keep it 76. I lost a black fin tetra who was the only one who had ich at the time. The next day white spots developed on all my neons and the pleco.

I noticed one neon gasping at the surface so I took out several gallons of water to create a lot of splash. I'd also leave the hood open now and then.

It took about 3 days before I saw a lot of improvement. I did not do a water change previous or during. I just did a 30% one after the last white spots were gone.

Now I'll continue the salt and heat and hope I won't have to deal with this parasite again.