Yes, as long as it is temporary it will be fine.
That would be a standard 29 gallon aquarium
You can put one maybe 2 one-inch fishes in your one gallon aquarium
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Its all your choice, my friend. However, the bigger the aquarium, the better the ecosystem- so I'd go with the 40 gallon. I have a 40 gallon fishtank myself.
The rule of thumb for stocking levels in a freshwater aquarium is 1 inch of fish per gallon of aquarium. For instance, five 1" guppies in a 5 gallon tank, or ten 3 inch cichlids in a 30 gallon aquarium.
Roughly 8.5 lbs per gallon. You do the Math.
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Easy. Fill the 7gal pail to the full mark (7 Gallons) with water. Then pour, from the 7 gallon pail, water into each of the 3 gallon pail up to the full mark. The remaining water left in the 7 gallon is 1 gallon. Pour this gallon into the aquarium. Fill the 7 gallon pail with water, again to the full mark, and then add to the aquarium. 1 Gallon + 7 Gallons = 8 Gallons.
right around 400#.... water is about 8# per gallon.
The size of the cage depends on the number of mice you plan on keeping in the cage. If you are housing one to three mice, it is suggested that you use a ten gallon aquarium with wire cover. Four to five mice should have a fifteen gallon aquarium and five to six should have a twenty gallon aquarium.
You should only have 1 fish per gallon of water in a fish tank. I wouldn't put more than 2 or 3 Neon Tetras in a 4 gallon aquarium with 1 Betta.
An aquarium with a capacity of 5.2 US gallons has a volume of 1,201.2 cubic inches.