hmm, from what ive read about them i think cardinals are more fragile than neons, but double check because im not positive. Also they are slower swimmers than danios. Possibly the danios will leave them alone but then again they might nip their fins (i dunno why but danios love nipping). If you have substantial hiding spots im almost positive they will be fine though, just giving you a heads up.
Seeing that you cant really chose between neons and cardinals, why dont you just find the cheaper one and get that?
Seeing that you cant really chose between neons and cardinals, why dont you just find the cheaper one and get that?