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Old 02-06-2021, 10:37 AM   #1
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Join Date: Jan 2021
Posts: 2
Cardinal tetra strange behaviour

Hello everybody,

Today I went and got 8 cardinal tetra's for our aquarium.
I see that 7 of them are healthy and normal but the 8th fish is behaving very strangely.
It does not swim with the other 7 fish, the way it swims is very strange it goes up to the surface often, stays hidden inside plants a lot of the time.
Im worried it might be sick.

I'm not yet very experienced at having an aquarium as this is our first tank.
It's a jewel 110 litres tank.
I've tested for nitrite and pH and both values are ok I think (nitrite 0.05mg/l and pH 7.0).

The tetras are together with 3 black mollys and 2 marble biota (I hope that's the correct name) and I don't see anybody harming the tetras.

I've uploaded a video of this specific fish here:

Does anybody recognise this behaviour?
Should I be worried or will this correct itself?

Many many thanks in advance for your assistance!

Stonaar is offline   Reply With Quote

behaviour, cardinal, cardinal tetra, strange, tetra

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