Mass Extinction :(

  • We are currently upgrading MFK. thanks! -neo
More Prime can treat more chloramine, but you have to know how much chloramine is dosed on your tap water at the moment of your WC. EPA's limit for maximum chloramine in drinking water is 4 mg/l measured as chlorine as an annual average. This is the level Prime is based on to recommend the dosage. There is a catch that the water company can have spikes on the chlorine level above 4 mg/l as long as the annual average is within the maximum limit. So if you are unlucky to do WC on the day of spikes, you will experience wipe out.

To prevent wipe out in areas where chloramine spikes can occur, it pays to buy a chlorine test kit to check the tap water before every WC.
 
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just an off hand thought, perhaps low oxygenation? fish go belly up pretty quick in low oxygen water. again just an off hand thought. sorry for the loss, :(
 
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pops said:
just an off hand thought, perhaps low oxygenation? fish go belly up pretty quick in low oxygen water. again just an off hand thought. sorry for the loss, :(
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Good thought, pop! That could be another culprit, too. Consider OP took 1.5 hours for water change on a 240-gal tank, plus water was in 78, lack of oxygen could happen. OP, did you add hot water when you filled the tank?
 
pops said:
just an off hand thought, perhaps low oxygenation? fish go belly up pretty quick in low oxygen water. again just an off hand thought. sorry for the loss, :(
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jlnguyen74 said:
Good thought, pop! That could be another culprit, too. Consider OP took 1.5 hours for water change on a 240-gal tank, plus water was in 78, lack of oxygen could happen. OP, did you add hot water when you filled the tank?
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I doubt it was lack of O2 but I could be wrong. The pipe has a lot of pressure and I don't keep the pipe completely submerged in tank water. Mainly for oxygenation purposes.
 
Oooo hells NO! Sorry for your losses. Man I prob throw in the towel if this happened to me. Hang in there bud!
 
It is likely to be chloramines, but i still think that you should do a kh test to rule out ph fluctuations as a cause of death. It is still possible that ph fluctuations that caused the death of your fish. If the KH is below 80 ppm, then that is the most likely cause of death.
 
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