Rosy barbs the killer?

Barry Tetra

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Hi TFF, I have 16 gal fill with 6 rosy barbs in the tank (I didn’t feed them yesterday)
I woke up and saw that 3 of them had died the same night.
Do you think its the water qualities that kill them or
they are fighting in the tank because they are really healthy yesterday.

water param: Ammonia 0 Nitrite 0 Nitrate 14
 

PheonixKingZ

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Do you have any pictures of your dead fish? Do your dead fish have any red marks around or near their gills? Does it look like they have little bites taken out of them?
 
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Barry Tetra

Barry Tetra

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Do you have any pictures of your dead fish? Do your dead fish have any red marks around or near their gills? Does it look like they have little bites taken out of them?
There are only fish bones and skulls on the tank :(
 

Colin_T

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Fish don't die if they aren't fed for one day.
Rosy barbs are not aggressive and do not kill each other.

What other fish are in the tank?
What did you do to the tank yesterday and the day before?
 

PheonixKingZ

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There are only fish bones and skulls on the tank :(
Bummer, I'm sorry for your loss... Are you noticing any nipping/chasing in the remaining fish?

Its very unlikely your fish died, due to the other fish. Have you added any new décor or fish in the past week?
 
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Barry Tetra

Barry Tetra

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These guy are extremely aggressive especially when they're hungry, it's like tiger Barb at this point.
 

Colin_T

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What did you do to the tank on the day before the fish died?

What other fish are in the tank?

What is the pH?
 

Aussie_Bristle

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I had 8 rosy barbs and they were not aggressive like that at all. The most they would do when the males were in breeding would circle each other nipping but would not mark one another. Even during feeding they were not aggressive just little piglets. Correct me if I’m wrong but they look like females which I never found as fiesty as the males could get
 
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Barry Tetra

Barry Tetra

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What did you do to the tank on the day before the fish died?

What other fish are in the tank?

What is the pH?
Other fish is 3 male swordtail but they are quite peaceful, pH are neutral, I didnt do anything before the fish died.
 

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