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Guppies dying

Tyler777

Fish Fanatic
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Apr 29, 2024
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Location
Menasha, Wisconsin
I had 5 guppies in a 10 gallons tank with 3 albino corys.
Now I'm down to 2 guppies they keep dying n I dunno why.
Water parameters are good. No ammonia or nitrites n I feed em every other day but they keep dying
 
I had 5 guppies in a 10 gallons tank with 3 albino corys.
Now I'm down to 2 guppies they keep dying n I dunno why.
Water parameters are good. No ammonia or nitrites n I feed em every other day but they keep dying
Hi, what are your other water parameters: pH, GH, KH?
 
Pictures of the fish?

How long has the tank been set up?
How long have you had the fish for?
When did they start dying?
What symptoms do they have before they die or when dead?
Did you add anything to the tank in the 2 weeks before they started dying?

What are the ammonia, nitrite, nitrate and pH in numbers?
What sort of filter is on the tank?
How often and how do you clean the filter?

How often do you do water changes and how much do you change?
Do you gravel clean the substrate when you do a water change?
Do you dechlorinate the new water before adding it to the aquarium?
 
There is not much to go on. A 10-gallon tank is pretty small; how do you know your corys aren't killing the guppies? Have you seen any aggressive behavior from the corys toward the guppies?
Nope, corys mind their own business at least while I'm watching them.
 
Thusfar, we still have not enough data to diagnose the cause.
There is not much to go on. A 10-gallon tank is pretty small; how do you know your corys aren't killing the guppies? Have you seen any aggressive behavior from the corys toward the guppies?
Cories won't be aggressive towards guppies.
 
Thusfar, we still have not enough data to diagnose the cause.

Cories won't be aggressive towards guppies.
@emeraldking You know, I realize Corys arent normally aggressive, but I can offer no other ideas based on what the OP listed. Plus, I was only asking a question and not trying to state a fact.

To have a small ten gallon tank with 3 Corys plus 10 guppies is a bit overcrowding. For example, I had people swear plecos aren't aggressive, but I have, and others have too, seen plecos kill other fish for territorial or food competition reasons.
 
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