The Puffer Forum

I have a green spotted puffer. He’s starting to grow a fuzzy white patch over his eye and now has one on his chin,his belly turned black,and is swimming irregular. He’s in a tank with an albino Cory,two snails,and a barb. I have a fern in the water. I took a 6-1 test and it’s awful. Nitrate 200 Nitr...