Steven C wrote:

yes, and as i said already, i admit i overstocked it. i was misinformed
and the problem has now fixed itself with only two small fish left.

yes, the water was cycled... and the test on the water was one on THREE
different test kits, so i dont know what to tell you.

but glad to hear they are healing, thats great news!

You're still overstocked, do 30% water changes ever 2 days and treat the new
water with a dechlorinator.