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

But, if the problem is chloramines, shouldn't the betta and inverts have suffered the same fate? (Or at least be visibly showing distress?)
exactly.... which is why this has been such a confounding mystery for me.... the only thing i've been able to think of is NTD.
 
has the substrate been disturbed? I ask this because due to the heavy planting in the tank, I wonder if there are anaerobic pockets within the root system being let out.
 
has the substrate been disturbed? I ask this because due to the heavy planting in the tank, I wonder if there are anaerobic pockets within the root system being let out.
I actually was struggling with anaerobic pockets for a while, but since I switched to my AC a few months ago they've pretty much disappeared. i've trolled through the gravel, no bubbles as far as I can tell.
 
anyone else have any opinions? I guess ill just chalk it up as one of those mysteries of the art of aquaria.....:/
 
maybe boiling water in pots is putting metals(iron)into the water? but then again, your shrimp are fine. im thinking since they were older they had a weaker immune system and got sick quickly.
 
10 days is actually a very reasonable amount of time for a virus to knock them out. Why did you lose the rasboras and not the rest of the tank? Same reason why when you get the flu your dog is fine and your pig is sick. Different viruses effect species.

Check with your LFS, if they had any strange die-offs recently you might find your cause of death. The best store in my city doesn't act like they don't get sick fish from their suppliers. They just turn the lights off on the affected tank and write "Not for Sale" on the tank until they have it cleared up. I've never lost a fish since I moved here and found them.
 
10 days is actually a very reasonable amount of time for a virus to knock them out. Why did you lose the rasboras and not the rest of the tank? Same reason why when you get the flu your dog is fine and your pig is sick. Different viruses effect species.

Check with your LFS, if they had any strange die-offs recently you might find your cause of death. The best store in my city doesn't act like they don't get sick fish from their suppliers. They just turn the lights off on the affected tank and write "Not for Sale" on the tank until they have it cleared up. I've never lost a fish since I moved here and found them.
I know, but shouldn't they have shown signs of illness prior to the day before they died?
 
They might have had symptoms but not ones that you could have seen early on. Fish don't run fevers or get snotty noses. You did say that the night before they seem lethargic and weren't moving around much. Well maybe this was the only observable symptom. Say the virus affected there little 2 chambered hearts or kidneys. They would slowly die but the only visible symptom would be a decreasing of energy. They all died together because the older fish succumbed to it faster than the young fish you put into the tank.
 
They might have had symptoms but not ones that you could have seen early on. Fish don't run fevers or get snotty noses. You did say that the night before they seem lethargic and weren't moving around much. Well maybe this was the only observable symptom. Say the virus affected there little 2 chambered hearts or kidneys. They would slowly die but the only visible symptom would be a decreasing of energy. They all died together because the older fish succumbed to it faster than the young fish you put into the tank.
mmmm..... that sounds like a good theory, but the trouble ius I dont know of any disease that would affect the rasboras, but not the betta.
 
Don't worry about not knowing what the virus was. There are actually many more unclassified viruses out there then described. These things can go from innocuous to deadly in a blink of an eye.
 
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