I have kept archers for years, and i had the exact same experience two different times Years apart after big water changes as i refilled with hose water along with a big dose of dechlor. I add the salt by putting it in the sump, dissolves over afew hrs. After the first time, i got a sink adapter and have since always add water of appropriae temp. The second time one died despite those efforts.
It amazed me that these robust fish abruptly died, though other archers in the same tank showed noprob. Ive never lost or seen stress from any other species during/after wtr changes, and never otherwise lost an archer (excepting "the big kill" documented below). Most bw fish are fine with abrupt salinity changes, so i always chalked it up to temp, shock, othr?
It amazed me that these robust fish abruptly died, though other archers in the same tank showed noprob. Ive never lost or seen stress from any other species during/after wtr changes, and never otherwise lost an archer (excepting "the big kill" documented below). Most bw fish are fine with abrupt salinity changes, so i always chalked it up to temp, shock, othr?
