The filter and the heating of my aquarium do not work anymore. After trying to solve the problem, I've concluded that the only way to solve the problem is to buy a new filter and a new heating. Can my fish (Xiphophorus maculatus) stay alive during about 12 hours (the time I have to wait until the stores can re-open in my city) without any filter or heating?
My house temperature is 23° C, tank has a volume of 100 liters, I have about 10 fish (without the babies).