u/El_delavida

Hey guys, i'm struggling to figure out what is causing harm to my fish. It's the third fish now that is rapidly loosing weight and eventually ends up dying. First two mollies died and now my Ornate Tetra. Could id be a parasite? Also I noticed on one Ornate Tetra slight like bulging eyes but can't tell for sure. I don't know what treatment to give them. Please help 😢