I noticed one of my crowntail females has a large portion of her caudal missing last night at feeding time. Her dorsal looks a bit rough as well. Im guessing she got into a fight or perhaps bit it off herself? Her normal color has faded and the horizontal strips have appeared (stress im assuming?). She is moving a bit slower and is not responding to food as eagerly now. Anyhow, im looking for advice on what to do with her now for treatment. Should I separate her as well?
She is in a 10 gallon planted tank with three other healthly and lively females. Ammonia, nitrite, and nitrate are all in check. Thanks for reading.