Can you run a fish tank without a filter?
A rising trend in the aquarium hobby, however, is focused on tanks that do not require any kind of filter system. A healthy and thriving unfiltered tank is possible to achieve, but it will take some forethought and planning.
Is it OK to turn off a fish filter at night?
It is not a good idea to turn off your aquarium filter every night. The filter plays a key role in the health of your tank, and shutting it down for hours at a time can eventually lead to problems.
Can a fish survive in milk?
The differences in acidity and dissolved oxygen, not to mention all of the fat, proteins, carbohydrates, and other minerals in the milk that might clog the creature’s gills, would quickly spell trouble. The animal would likely die within minutes, if not sooner.