Cardinal Tetras

Hi,

How many gallons is 80 litres? You should aim to have no more than an inch of adult size fish per US gallon and cardinals supposedly grow 2 inches though i've had some of mine for 4+ years and they are only 1.5 inches.

It makes the tank more interesting if you also go with a group of bottom dwellers such as corydoras so thats something else to consider.

Emma :)
 

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