Definitely invest in some sort of tap water dechlorinator because no matter what there are some ions in water, its just natural. THere is no such thing as pure water, once you take the lid off, everything in the air dissociates into it.
I don't think there is really anything you can do but jsut keep feeding it and putting soem weight on it, and maybe later down the road you can treat it for parasites or something.
If you are keeping those discus and the other ray fine then it seems to logically point towards a problem with just your ray and not the entire system.
I don't think there is really anything you can do but jsut keep feeding it and putting soem weight on it, and maybe later down the road you can treat it for parasites or something.
If you are keeping those discus and the other ray fine then it seems to logically point towards a problem with just your ray and not the entire system.