"cindys" wrote in message
...

My little fish died. So, now we have only 1 fish in the aquarium.
[snip]

I'm sorry your fish didn't make it.

Your original fish survived for over a year in
less than optimal conditions, but chances are
good it was stressed and as soon as conditions
changed (new fish, new tank, new water) its
immune system couldn't handle the stress.
Mostly likely that's why it got sick and died,
not because of overfeeding, or medicating.

You seem to have a good handle on how to
treat fish. I would continue doing partial water
changes and eventually the remaining drugs will
be out of the tank. Have you put charcoal in the
filter? That usually will clear up the remaining
medications. I avoid those expensive cartridges;
instead I buy a small media bag (available at
Petsmart etc.) and a box of activated charcoal
(same source). When I need to use charcoal, it's
simple to put some in a media bag and remove it
when the problem is solved. The media bag
rinses easily and can be reused.

At this point, it sounds like your husband isn't
willing to follow advice about quarantine. To
keep peace in the house, maybe it's best to just
let him get another fish. Hope for the best.
Some of us (and I do include myself in that)
need to learn lessons the hard way before we
truly learn. You might get lucky and the two
new fish will do fine.

Good luck!

Gail