Something bizarre happened in my planted 60 gallon tank yesterday. It's home to 4 Yoyo Loaches, 5 Congo Tetras, 5 Otos, a Yellow Spiny Eel and a Royal Pleco. Stats, in advance, are: A: 0ppm, NI: 0ppm, NA: 5ppm.
My largest loach, approximately 4 inches long and reasonably thick, disappeared...