I have an Opaline Gourami, that was injured. It lost it's tail fin, it also has a few scrapes. How this happened my husband cleaned the tank and moved a rock that it swam in between and got stuck and another fish chewed it's tail. Will the tail ever grow back? I am very upset that this happened. The fish seems healthy and is eating, I have it in a floting breeder box. Please help, I don't want flush it.