My loach tank is horribly sick. I noticed they weren't behaving correctly yesterday. A few have some spots of ich. Another has small mold-like white blotches on part of its body. They're all producing large amounts of slime. They flick around and rub their sides on the floor and ornaments. My sucker fish turned up dead this morning. Most of its body appears to either be missing skin or is covered in a strange red sore-like coat. When I netted it, the red areas rubbed off a little on the net, turning it red as well. The temp in the tank has stayed a balmy 85F and I've started feeding anti-bacterial food. All params are normal. Any ideas?