I recently bought 4 mollies after falling in love with them at my pet shop. I have now noticed that my silver molly (I have a silver, a black and 2 dalmatian, 1 light spotted, 1 dark spotted) has developed 4 black vertical lines on his body on each side. I have no idea what these are, but do know that they may be stress lines, as bettas get similar reactions, but any help appreciated thanks... I have also noticed that my small (only a few months old...) guppy male Randy has been chasing him, living up to his name shall we say, so if they are stress lines, this could be the reason. But why oh why oh why would Randy be chasing an adult MALE molly :nono:??