BoSox Fan7

Would only two cardinal tetras be okay together?Or do i need more than that?


Thanks

Cody

i believe your tank is already over stocked...are you planing a second tank

lilsoccakid

yes ur tank is already overstocked, and you would need at least 5 of them

susitna-flower

Sounds like you are the one who needs to visit Petco! Cardinal tetras need to be in a school of their own kind, 6-10 or more is best! If you start out with 10 you will be lucky to end up with 6-7 after the first week, but they NEED a well cycled tank with good water conditions.
Are you still checking your ammonia, nitrites and nitrates in your 12 gal? Sounds like maybe you need to up your water changes.

Fish in the Frozen North

choochiegirl

i have 3 cardinals and they are fine, the LFS didn't have anymore so I'm waiting to buy 3 more once they get them in. they have been in my tank for over a month and even survived an evil mini-cycle. I find these are quite hardy, i had a few fish die in the cycles, but not them