The holiday block with real fish food inside! Automatically feeds your fish when you're on holiday. Simply place the 7-Day Pyramid Fish Feeder in your aquarium and it will immediately start to dissolve, giving off a stream of fine bubbles. Within a few hours, the first nourishing food pellets will begin to swell and push out of the pyramid. On about the fourth day, a patented secret chamber will open, releasing a cube of tubifex worms for a surprise midweek treat. One pyramid will feed 20 average sized fish in a 40 litre tank for 7 to 10 days. Suitable for tropical, coldwater and marine fish.

Do not use in fish bowls or aquariums without adequate filtration and aeration, as water circulation is needed for it to dissolve.