That puts you in a "Fish-In Cycling Situation" and you'll want to switch to reading the article about that. You may be able to save them if you follow the fish-in cycling procedures. The cloudy bacterial bloom is not significant, it will go away. What is significant is the need to hold ammonia to always be at or below 0.25ppm and nitrite(NO2) to always be at or below 0.25ppm as measured by a good liquid-reagent based test kit. It generally takes about a month to get the filter cycled and fairly large water changes may be necessary, sometimes daily.
You have to be a bit of a detective to figure out the percentage and frequency of water changes that will keep the toxins below 0.25ppm until you can get back to the house, test, and possibly do another water change. Ammonia, even in small amounts, causes permanent gill damage and either shortens the fishes life or ends it. Nitrite(NO2), even in small amounts, causes suffocation via damage to the fish blood hemoglobin molecule, causing permanent nerve damage, again leading to a shortened fish life or death. This is why its preferred to have a fully operating biofilter -prior- to introducing fish or why you want to hold those two levels so low via water changes.
~~waterdrop~~