all my rasboras are dead... what the *beep* happened?

like I said the betta wasnt really "out to get them", he only chased them if they came too close to his bubblenest... and like I said there were no external signs of damage on them, if the betta had got at them im sure they'd have ripped fins, bruises, ect.
 
im thinking it was the new water you added. did you dechlorinate and treat the water?something that sudden and they were gasping points to a pollutant. how much water did you add?
 
the water is boiled, and has no chlorine in it whatsoever. they were not gasping, they were simply hanging there. I occasionally does floursih excel, but I haven't dosed any recently.
 
jaysen said:
not sure then, maybe an introduced internal bacterial infection, virus...
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know of any diseases that kill very fast and with basically no warning or signs of infection?
 
There's one like that, but I think it's only a marine thing - I don;t know if there's a FW version.

For all of 'em to go together like that, I think it's either lack of O2 (do you use CO2? - possibly a combination of duckweed & bubble nest cutting off gas exchange, or a bad chloramine spike in the top-off water (Prime>boiling)...

My condolences.
 
Squawkbert said:
There's one like that, but I think it's only a marine thing - I don;t know if there's a FW version.

For all of 'em to go together like that, I think it's either lack of O2 (do you use CO2? - possibly a combination of duckweed & bubble nest cutting off gas exchange, or a bad chloramine spike in the top-off water (Prime>boiling)...

My condolences.
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I know for a fact that rasboras are very hardy and live in O2-depleted waters in the wild (such as peat swamps), and even though I do have a nice coat of duckweed on the surface, I do have a AC 30 filter, so theres always plenty of flow in the tank.... in fact, i've reduced the flow on pur purpose. i;ve been adding boiled water like this from the same pot for a while, and i've never seen any negative effects.
 
OK - it isn't likely O2 starvation.

Boiled water pot experience may have been good so far, however this does not mean that the city couldn't have had a bad water day, adding more of something than your boiling roitine could remove. Boiling gets Cl2 out in a big hurry, Chloramines - not as fast, I'd wager...
 
Squawkbert said:
Boiled water pot experience may have been good so far, however this does not mean that the city couldn't have had a bad water day, adding more of something than your boiling roitine could remove. Boiling gets Cl2 out in a big hurry, Chloramines - not as fast, I'd wager...
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But, if the problem is chloramines, shouldn't the betta and inverts have suffered the same fate? (Or at least be visibly showing distress?)
 
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