You only need to feed them the amount they can eat in three minutes once or twice a day. People often overfeed fish but the truth is the fish are not very active in a fish tank cause they have a...
The oldest koi carp was named Hanako and died in 1977 aged 226 years old however they can live to be around 60 but it isn't uncommon for them to live longer.
not a lot just take a little that fills the top of your finger
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An adult koi should be fed about one gram of dry pellets a day. Never feed more than they will eat in five minutes.