Thunderkat
Tue, 3rd May 2005, 03:14 PM
It should be the same nutrition just less water in freeze dried. I would stay with freeze dried because its easier to store.
Freeze-dried foods. Many small aquatic organisms, such as daphnia, brine shrimp, mosquito larvae, "blood worms" and the old-timer's favorite tubifex worms are collected, cleaned and quickly freeze-dried to be used as treats for aquarium fish. The freeze-drying process retains much of the nutrient value, and often the character of the organism as well. The result is a treat that looks and often smells like "real food" to the fish, yet is convenient and quite reasonably priced on a pound-to-pound basis.
Frozen Foods. Many of the same used in freeze-dried foods organisms (and other more unusual entrees like algae, squid, fish and beef heart) are also available frozen in thin blocks of ice, not unlike "The Thing" in the classic horror/science fiction film. Fortunately, when thawed, they generally don't come back to life and go on a rampage, but they do look awful tasty to most aquarium fish. They are consumed with relish (not literally) by even most of the pickiest eaters. Since they need to be stored frozen, they are a bit less convenient than dried or freeze-dried foods, and the price per pound of actual food (rather than water) is quite high. In addition, their less-processed nature that keeps them so appealing to fish also increases the risk of introducing pathogens or pests into the aquarium. At least one major brand irradiates its foods to reduce such risk.
Freeze-dried foods. Many small aquatic organisms, such as daphnia, brine shrimp, mosquito larvae, "blood worms" and the old-timer's favorite tubifex worms are collected, cleaned and quickly freeze-dried to be used as treats for aquarium fish. The freeze-drying process retains much of the nutrient value, and often the character of the organism as well. The result is a treat that looks and often smells like "real food" to the fish, yet is convenient and quite reasonably priced on a pound-to-pound basis.
Frozen Foods. Many of the same used in freeze-dried foods organisms (and other more unusual entrees like algae, squid, fish and beef heart) are also available frozen in thin blocks of ice, not unlike "The Thing" in the classic horror/science fiction film. Fortunately, when thawed, they generally don't come back to life and go on a rampage, but they do look awful tasty to most aquarium fish. They are consumed with relish (not literally) by even most of the pickiest eaters. Since they need to be stored frozen, they are a bit less convenient than dried or freeze-dried foods, and the price per pound of actual food (rather than water) is quite high. In addition, their less-processed nature that keeps them so appealing to fish also increases the risk of introducing pathogens or pests into the aquarium. At least one major brand irradiates its foods to reduce such risk.