
started doing more water changes, they still didnt seem to be eating, they looked reddish under the skin so we tried API general cure. didnt seem to help. purchased 2 more zebs..couldnt resist..checked ammonia almost everyday, pretty much zero. monday we lost 2 to what we think was nitrites. one looked really really red under the skin, the other looked good in color, but seemed to have an anchor worm or something attached to its "fin armpit" and seemed to be bleeding inside from it.
lost another one just the other day, he had a red spot, looked internal, on the left side of his face. We have two left now

We put some Epsom salt in there earlier today for the pop eye, could lead to color fading?
checked perameters:
no ammonia
no nitrates
nitrites between .5 and 1.0
hard water
no chlorine
alkalinity is moderate
and ph maybe a little higher than 6.8 probably due to the drift wood we put in.
please if you have any opinion or guess to what they might have or had so we can fix it asap and releave our stress it would be much appreciated!
thanks.