Newbie question: Will cardinal tetras and neon green tetras....

[seancj]

intermix and school together, or will they form their own separate schools within the tank? Any experiences would be very greatly appreciated.
Tank is a 240 gallon cubish shape; 4' by 4' by 2' tall, in which I'm hoping to emulate an Iwagumi style setting. I have 7 large black 'boulders' in the tank now and will plant the white sand substrate with lots of HC. I don't think I'll be adding any tall plants, but who knows down the road. I would like to keep the water column open so I can see the fish all the time.
I am planning on adding approximately 75 cardinals and 75 neon greens, or maybe just 150 neon green tetras only.
In several months when the tank is stable, I may add a nice pair, or perhaps a small shoal of 5 blue diamond discus.
Thanks for the help with the tetra question!
Sean

[Vieira]

They will form thier own school. Cardnels do better in higher temps if your going to keep Discus.

[seancj]

Thank you! Hmm, now I need to decide on getting one, or both, species?
Its' possible that I may forgo the discuss down the road if the school tetras are sufficient enough to keep the tank interesting.

[Apistomaster]

They will form their own groups but as a long time fan of the Green neon and THE Neon I keep with Discus I can tell you that Green Neons do well as Cardinals at Discus Temps. It is Parcheirodon innesi, the common Neon Tetra, that does not do well if kept above 80*F.

I was keeping Green Neons in with my 10 Heckels for the past 2 years until I sold my Heckels a couple months ago. Still have my Green Neons now sharing a tank with a couple pairs of Apistogramma wilhelmi. Still keeping them at 84*F.
My fish room stays so warm and even hot in the summer so I can only keep fish that handle warm conditions.
That is why I raise fancy L-number plecos, Discus Apistogramma, Sturisoma and other fish that love warm water.

[yikesjason]

I have about 20 cardinals and 15 neon greens in my 125 tank and they school together. They don't separate at all.

[discusjoe27]

wow what green neon tetras never heard of them can some one post photos
thanks.