hello everyone, i am vietnamese and my english is not good so i use google translate i hope everyone understand:
The story is that my aquarium is 120x60x60 in size recently, my fish has had hemorrhagic phenomenon under the gills, so I use the drug melafix and pimaifx with the manufacturer's dosage, but after 24 hours of use I use The 55cm tiger cat is dead and I don't understand the reason because after now my tank other fish still suffer from hemorrhage, ulcers, fungus, and fins, I have changed 20% of the water, using heating. 32 degrees and continue to use the drug hope everyone answers thank you



The story is that my aquarium is 120x60x60 in size recently, my fish has had hemorrhagic phenomenon under the gills, so I use the drug melafix and pimaifx with the manufacturer's dosage, but after 24 hours of use I use The 55cm tiger cat is dead and I don't understand the reason because after now my tank other fish still suffer from hemorrhage, ulcers, fungus, and fins, I have changed 20% of the water, using heating. 32 degrees and continue to use the drug hope everyone answers thank you


