How long can an aquarium remain without any filter and heating?
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).
Depending upon the type of fish, it may be possible. Some fish are able to survive in a bit cooler water. However, there are some fish that are extremely sensitive to temperature, for example angelfish are very sensitive, and I don't think they would survive. I have had fish such as guppies and neon tetras that were able to survive for a couple days without a heater. It really depends on the fish. As for the filter, I think they should be capable of surviving for 12 hours without one.