I've been searching to figure out if winemilleri will eat cardinals. I've found some older threads that indicate that some geo like altrons will actively hunt and eat tetras while others will not but i can't find anything specific about winemilleri.
Of course there are always exceptions but i'm hopeful someone who have actually kept winemilleri might have some first hand experience on the matter.contrary to many of the responses you will receive on this forum, there are very few hard, fast rules for keeping freshwater fish. your mileage may vary
Yea i found another thread where someone said something similar. Maybe it was you but it was back from 2010. Ok. How small can the tetra be - to be safe? Is there a schooling tetra like rummy that is larger - i know serpae and white fin rosy don't really schoolI bought 50 cardinals to compliment my geo sveni one time. And the next morning there was only a few left.