-1-2 frozen peas for an hour - helps bloating -Bloating is probably fine, female tetras can just look like that -Switch to fluval bug bites for all food -Probably more tetras because danio’s are hyper and aggressive and stress other fish. Main problem. One or two More decorations for hiding -not sure if that’s actually fin rot or if that’s just from them getting stressed and fighting -lowest priority: get a couple more coris. They like schools of 3-5