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Nutrafin 7- Day Fish Feeder has been formulated to provide complete nutrition for fish up to 7 days. The slow-dissolve and slow-release tablets provide a balanced diet of pellets and multi-vitamins for community aquariums up to 10 US Gal (37.8 L). For larger aquariums, simply add one block per 10 US Gal (37.8 L).
For best results :
Note : It is recommended to perform a 20% water change after using the 3-Day Fish Feeder