Goldfish will not survive being frozen. They are temperate water fish. Their healthy temperature range is from around 35F to 70F. At the lower temperatures the fish tend to go into a stupor and become more active again at around 50F
no
No.
yes
Yes, goldfish can survive without food for two days.
No you mook
To maximize the duration of ice retention in a cooler, you can use a high-quality cooler with thick insulation, pre-chill the cooler before adding ice, limit opening the cooler frequently, use block ice instead of cubed ice, and keep the cooler in a shaded and cool area.
To keep ice in a cooler longer, you can try using a thicker cooler with better insulation, pre-chilling the cooler before adding ice, keeping the cooler out of direct sunlight, minimizing opening and closing the cooler frequently, and using larger ice blocks instead of smaller cubes.
Goldfish
Goldfish are freshwater fish and can not survive in saltwater environments (oceans, etc) They can only survive in freshwater (non saltwater such as ponds, rivers, and lakes).
Goldfish need water to swim and breath in, not mud. There are some species of fish that have evolved to survive in mud but Goldfish are not one of those species.
Salt does not make ice cooler; it lowers the freezing point.
Goldfish