i have a guppy fish that has weird black spots on its underbelly (closer to its head) and several on its side...It looks like as if the shiny metallic skin ripped and is showing the black intestines/whatever else is under the skin. Also, the fish might be very old and/or pregnant. My question is whether this is a problem of overfeeding or anything else that i can correct, or is it something not fixable.
thanks
thanks