It depends what filter you have.... you can have external filters, internal filters, biological filters, canister filters and mechanical filters..... but basically water gets sucked up through a pipe and cleaned by being pushed through meshes, catridges, sponges..... then goes out through enough pipe and returned back into the aquariam.
Filter a fish? Do you mean filtering a fish's tank? Well you have to filter any fish's tank.
Yes you do need a filter in your fish tank ifyou don't the tank will build up dirt and the fish will die. Also when you get a fish tank you need to clean it out then fill it with water then put the filter in and wait 24 hours. This helps to ensure that the tank is somewhat stable before adding fish.
Different species need different conditions and water currents. I would get a filter that will turn over the capacity of the tank at least once every hour.
The filter removes the fish waste and some of the other impurities.
A filter...
Then your filter is not on.
The charcoal filter in a fish tank should be changed every 2-4 weeks to maintain water quality and keep the tank clean for the fish.
A filter in a fish tank helps provide oxygen by circulating and aerating the water, allowing for oxygen to dissolve and be available for the fish to breathe.
no filter because for smaller fish it can hurt or even kill them and for the old filter use bigger fish
Purchase an outside power filter (try one of the newer biowheel filters), make sure it is the correct size for your tank. A canister filter is the best kind. It works the best, and you can change the filter media around to suit your needs.
Yes
yes