There are several treatments (API, Tetra etc) but I have always used Seachem Cupramine... just follow the directions. After the treatment, do a large water change to remove the medication.
Most ICH cures contain copper, which can kill beneficial bacteria and invertebrates. You should expect to see a mini cycle once treatment is done. Ich can also be transmitted to other tanks by things like nets or tank tools / containers so you will want to watch out for that as well.
In the future dont introduce anything that hasnt been quarantined for a few weeks. Also NEVER USE FEEDER FISH unless you are following the same procedure or breeding them on your own.
Most ICH cures contain copper, which can kill beneficial bacteria and invertebrates. You should expect to see a mini cycle once treatment is done. Ich can also be transmitted to other tanks by things like nets or tank tools / containers so you will want to watch out for that as well.
In the future dont introduce anything that hasnt been quarantined for a few weeks. Also NEVER USE FEEDER FISH unless you are following the same procedure or breeding them on your own.