Hi all! I have a problem with my sunset gourami. I bought him1 month – 1.5 months ago and then he has not shown any sign of illness. After three or four days it appear on his skin and fins brownish-blackish patches. Since then (with 1 month ago) he doesn’t shown any changes even he’s slightly worse. However, he’s eating and swimming normally but he is a little more agitated than the other fish. I attached a picture with my fish and I hope someone to know what he has! Sorry for my English but as you noticed I’m not a native English speaker! Thanks!
PS: My aquarium: -60 litters
-heater, white light bulb, water filter
-fishes: 1 pearl gourami, 2 sunset gourami and a betta male
-water temperature around 82 Fahrenheit(28 Celsius)
-water parameters: 0 ammonia, 0 nitrites, 0 nitrates, PH:7.8