Often muddled up with the neon tetra, the cardinal tetra is another tiny freshwater fish from South-America. The differences between the two tetras are the cardinals are slightly bigger, much more hardy and do not lose their magnificent color as they becoming older. Now commercially supplied from the Czech Republic, these striking little fish are also very prone to white spot ( just like the neon ). However white spot can be easily treated. Another similarity between the neons and the cardinals is that both will have a much more enjoyable time in your aquarium if there are between 6-10 fish in the school.
The cardinal tetra has bright red ventral parts and an iridescent blue line that runs horizontally down the length of its body. Cardinal tetras appear to grow larger in captivity than they do in the wild. They have a large stomach and small gut.
Feeding:
Feeding the cardinals is exactly the same as feeding neons and of course, most other tetras.
They will eat all sorts of broken down flake foods and do well on live food such as bloodworms, glassworms and baby daphnia as well.
Aidan.
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