dead and dying angelfish

[royko]

10 gallon tank with 4 guppies and 2 angelfish - water quality very good - 3 days ago I noticed the angelfishes tails appeared to be squeezed together at the ends as if pinched - no other outward signs of illness - 25% water change and gravel vacuum - added some salt today when one angelfish appeared lethargic - lethargic angelfish died and the other looks weaker - conflicting theories abound - I don't want to treat the tank for s
omething they may not have - I am totally ignorant as to my next move - HELP !

 

[WILDER]

What type of angel fish are they as they need a bigger tank then a 10gal, can you post test results just to make sure in ammonia,nitrite,nitrate,and ph.