help!!fish dying

[st3]

i was doin hyposalinity and my fish are breathing extremly rapid. their mouths are opening and closing like a hundred miles an hour. one is on its side. whats goin on? plz help me. the salinity is now at 1.0012.

 

[kev]

This doesn't sound good... Which of your fish are in the Qtank? Are all of the fish breathing rapidly? When did you start the hypo? Did you bring the salt lvl down over a period of time(48hrs)? This could be a # of things(stress, disease, differant water parameters, etc...). If you could answer some of these questions then maybe i could be more of a help