Douro Live food

Is there any good quarantine method for feeding live food?
Big shoe soles over the back gold comments: feeding live food, especially live fish is too risky, cross-infection, enteritis.
Douro Comment on two pots of wine in a temple on the top of the mountain: cozy
Comments on fish culture and cabbage: beautiful
Douro Mr. Xiaoneng Cat commented: what filter material do you use?
Douro
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