So I have six glowfish tetras and one of them has got a hurt tail he’s hanging in for the most part and it’s a 100 gallon tank with lots of plants ... I don’t know where the hurt tail came from he was doing fine yesterday then I woke up and now his tail is hurt I would add a image but I haven’t figured out how to do that on this site yet... it just said I have to add the URL and how do do that .... but ya any tips to help my hurt fish would be greatly reapected thank you.