Treating Ich with salt, no result
We've been treating our tank (details below) with salt for 9 days, with no result, and wanted to know how to refine our method or what the next recommendation would be for our fish.
It's a 55 gallon, has been running for 3 months following a fishless cycle. Eheim 2215 filter, 150w heater and 100w heater, sand substrate, driftwood, slate, Satellite LED+ lighting, 24" airstone. We have Am Swords, dwarf chain sword (these are great!), DHG, Anubias and Xmas moss and riccia on a "tree".
Params tested today are 0amm, 0nitri, 0nitra, 8.0ph, temp @ 84f (as part of treatment)
We've added the fish in stages, in the following order, 11 zebra danios (hilariously psychotic), 5 otos, 1 Endler (snuck in with the Otos as fry), 2 Cory Habrosus (awesome) and 18 neon tetras.
We QT's the tetras for a week, but after adding them they began showing ich. Reading around yielded very conflicting info on treating ich with plants and the catfish, so I figured to try salt and heat. The heat was brought up over the first 3 days up to 84f, and salt was added over same period to a final ratio of 2T per 5gallon. Treatment was started 9 days ago, and has been at full temp/concentration for 6 days. I've done 2 water changes, trying to keep the concentration going.
The ich as come and gone off of different fish, iniitally it was on 3 tetras, then one oto, and now its on 3 _different_ tetras. The fish have handled the changes well, and seem be behaving normally.
Should I wait longer on the treatment? Raise concentration? OR is it time to abandon salt/heat and go with medication? I'm considering Paraguard, nox-ich, rid-ich but have conflictiong information on all.
I look forward to seeing what wiser people than I think about this, as it's a thoroughly confused issue to internet at.