Emergency! Help! 02 problems

When I bought my tank off of CL, everyone said to be careful of a mini cycle even though i transferred everything, but the sand. I actually bought more live sand to put in though. did you do the same or was it dry?

Also, please check all params again, as grinder said and let us know what they are

 

Yeah - I just checked them like 10 minutes ago when I noticed everyone acting about to die.

I'm so upset And now my firefish and damsel went into the rocks so I can't easily catch them if I need to.

 

I've had these fish for over two years, if they die I'm going to be heartbroken

I really don't know what to do. All params are fine, just tested, 02 should be fine, but that's the only thing I can think that is the problem...

 

If you have any Prime put some of that in. Aerate the heck out of the tank.

 

If your params are fine,plenty of surface agitation going on then i'm stumped,unless mabey a stray voltage

 

I have no extra power heads or pumps....the one I have isn't working. And my fiance is gone, and I can't leave my dog because she had surgery. This is freaking horrible.

I'm so upset.

I'm really thinking about throwing them into my 90 gallon....there is plenty of oxygen in there...I can't just watch them die.

 

Before you do that is there anything else that may be wrong with them? do they have any spots, cloudy eyes, etc?

 

if you feel thats best then grab them while you can,but i'm concerned of adding yet more stress

 

Or could it be possible that they have velvet? I hear it can hit fish fast - less than 24 hours

 

Do you have a voltmeter?