Fish Dying

[Nathan.popp]

Okay so starting this morning I noticed my coral beauty acting strange(tank lights were off) didn't think much of it, and I went to pic up some new fish, and when I got back the coral beauty was gone. Now, I messed up on one part, yesterday I turned my powerheads off for feeding and forgot to turn them back on. So I turned them back on when I got home, removed the fish, did a 20% water change! and tested my water

Amm 0
Nitrite 0
Nitrate close to 0
Phos close to 0
Ph 8.4
Kh 9
Calcium 420

Later tonight one of my green chromic was floating around slowly (dead) so I flushed him. Now I'm in extreme panic. I can't lose any more fish. Are the power heads what are causing my fish lose? Any other advise? Losing sleep here

 

[Nathan.popp]

Need help. Asap

 

[HumbleFish]

How long were the powerheads turned off for? If your fish are dying due to oxygen deprivation, you can point all your powerheads towards the surface for additional gas exchange.

 

[Nathan.popp]

They were off for less than 24 hours

 

[Nathan.popp]

Like probably about exactly 24 actually

 

[saltyair]

How many fish did you add at once?
Could have been lack of oxygen due to low water flow

 

[HumbleFish]

Could have been lack of oxygen due to low water flow

+1 If the pumps were off for 24 hrs, oxygen deprivation is likely the problem. All you can do is get the water back circulating again. Adding more powerheads (pointed towards the surface) and/or adding air stone(s) will help raise the O2 level more quickly.