you're welcome. But we still need to know ammonia/nitrite/nitrate levels in your tanks. If those aren't under control, there is a high chance that the fish will fall ill to something else. Do you have a liquid test kit? I suggest getting your own, because even though the store can do those for you, those levels can and will change within hours. Also, stores often use a strip/dip test. Those are highly inaccurate and hard to read, so I always recommend the liquid tests.
Good luck to you and your angel!