This depends on many factors.
Clean water of course! Dirty water is full of pollution, and makes it harder for the fish to breath. Also, dirty water that contains high amounts of ammonia, nitrite, and/or nitrate can actually cause long term gill damage in goldfish.
Turtles can survive in dirty water for a short period of time, but prolonged exposure to dirty water can harm their health. It is important to regularly clean their habitat and provide clean water to ensure their well-being.
This is not true.
This will depend on how much vinegar you are looking to have evaporate. Vinegar is a mixture of acetic acid and water. Acetic acid will evaporate faster than water at a rate of .97.
The time it takes for water to evaporate depends on factors like temperature, humidity, and surface area exposed. In general, it can take anywhere from a few hours to a few days for water to completely evaporate.
as long as you could in a sewer drain It is cruel and selfish not to clean a tank besides it doesn't take that long get alge eaters to clean up all of that and get a tank filter to help with the mess so it isn't a lot of work.
The time it takes to freeze dirty water would depend on factors such as the level of impurities in the water, the temperature of the surroundings, and the size of the container. Generally, dirty water may freeze at a similar rate to clean water, but impurities can sometimes act as nucleation sites, potentially affecting freezing time.
This depends on many factors.
This depends on many factors.
This depends on many factors.
This depends on many factors.
Put 2 cups outside on a sunny day. One with salt water and one with regular water. Check on them every 5 minutes or just watch them. Then you time how long the salt water took to evaporate compared against how long it took the regular water to evaporate. Then you'll have your answer.