Cardinal Tetra

[alistairw]

Just wanted a bit of behavioural advice on the CT please!

I have 10 in a shoal. I got them in 2 batches, 6 and then 4. The 4 pretty much schooled with the others straight away, which I didn't expect. They have been in the tank nearly a month now but seem to pretty much do what they want rather than be in a fairly tight school. Does this mean they are content with their environment?

 

[fluttermoth]

Yes, schooling is a defence mechanism and most fish don't do it unless they feel threatened.

So it might not look as impressive, but at least you know your fish are happy!

 

[alistairw]

Yes, schooling is a defence mechanism and most fish don't do it unless they feel threatened.

So it might not look as impressive, but at least you know your fish are happy!

That's what I thought, but thought it was a good idea to run past the experienced!!

Thanks for help!