I had the fish in this aquarium for nearly 7 months. It was just an inch when I bought it. I did a complete water change last Saturday and added the water conditioner. But yesterday night at this time it was playing very well. All of a sudden when I woke up today morning it was struggling to keep afloat and his left eye appeared cloudy.How long have you had your fish and the tank?
I've seen this happen to fish that are newly bought and put into a brand new uncycled tank. Hearty fish can be hearty, but they too have their limitations. But like everyone says above, get the fish out of that pebbled water.
As of now, I have done a 50% wc in the morning, followed by 25% and 25% wc. I have also added 10 ml of paracidol and half a bottle of metrogyl solution as per instructions from a local pet store. I hope he can somehow survive and be healthy again. How frequently do you all suggest me to do a wc in this current situation.