Hi everyone this is my first post, and at my wits end about one of my fish.

One of my large tiger turqs has had white stringy faeces for over a month now. I have treated with Kusuri wormer plus, octozin, Hexamita and just finished a 6 day course of Octocil esha supplied me. Which nearly killed him! He was on his side and listless. Returned to main tank and he is righted and seems ok apart from below.

I haven't seen him eat in this time and is still rapid breathing and passing white faeces. Not sure he can live much longer and nothing seems to help.

Only had the fish 3 weeks before it showed these symptoms.

180l jewel vision with added discus pro sponge filter.
Ph 7
GH 10
KH 5
All perimeters normal and 5 other discus healthy and eating.