2 Guppies Dead

[lilgampla]

I work up to go toilet put my light on to find 3 guppies alive 1 with tail been torn apart
I had 6 guppies (2 males 4 females) and 2 danios ( looks to be a breeding pair) lve put the remaining into a bigger tank just guppies to recover and destress
Can you tell me if the danios are doing it or guppies


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[Aroura]

How big is the tank you have them all in?
It could be there isn't enough room for the danios and could be killing off your fish to make room. But I can't really tell you.

 

[lilgampla]

How big is the tank you have them all in?
It could be there isn't enough room for the danios and could be killing off your fish to make room. But I can't really tell you.

15L Or 3.29g

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[NickAu]

You tank is way too small for Gupies and Danios.

 

[Essjay]

I agree with Nick. 15 litres is too small for any fish, in my opinion.
 
Danios are very fast swimming shoaling fish. They need to be in a group of at least 6 in a tank no less that 90 cm/3 feet in length. They will be very stressed because there aren't enough of them and the tank is too small; stressed fish behave differently from unstressed fish and could well have nipped the guppies. The guppies might have nipped each other as they too will be stressed in such a small tank.
 
But I also need to ask what the ammonia, nitrite and nitrate levels are in this tank. With so many fish in such a small volume, any one of those could build up quickly. Ammonia and nitrite are quick killers, nitrate is a slow killer if the level is high. And with guppies being the delicate fish they are, any water quality problems would affect them.
If you don't have your own test kit, I suggest you take a sample of tank water to a fish shop and ask them to test it for ammonia, nitrite and nitrate. get them to write down the actual number; don't accept something like 'a bit high' or 'fine', you need the numbers.
 
In the meantime, I would do a big water change today. That's always a good thing to do if fish have died or even just look a bit sickly.

 

[Andysc1]

if you have a bigger tank why are they in the small 15l tank anyway?

 

[nic1]

Danios are happier in larger groups and shouldnt be kept in little tanks, they are fast swimmers and love to explore the top layer of the aquarium, the two you have will certainly be stressed out and frustrated and would take it out on other fish who enter their space.
Also your guppys are not suitable for this tank either, the only thing that really is suitable for a 15L is shrimps.
Your guppys would breed making less space driving up your water stats.
I think your parameters are off because things could go bad very quickly in a tiny space with lots of fish, how big is your big tank?

 

[NickAu]

 
Danios are happier in larger groups and shouldnt be kept in little tanks, they are fast swimmers and love to explore the top layer of the aquarium,

Yes, I have 8 in a 6 foot 100 gallon tank and they are active swimmers, After seeing how mine are I really cant imagine them in anything less than a 4 foot.

 

[lilgampla]

 
Danios are happier in larger groups and shouldnt be kept in little tanks, they are fast swimmers and love to explore the top layer of the aquarium,

Yes, I have 8 in a 6 foot 100 gallon tank and they are active swimmers, After seeing how mine are I really cant imagine them in anything less than a 4 foot.

I got told they would be OK by my local fish store makes me wish I research before

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if you have a bigger tank why are they in the small 15l tank anyway?

The bigger tanks my mums I wanted to get a tank to help me nod off

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