All canister filters have a max distance from bottom of filter to tank rim, some have a minimum distance from top of filter to tank rim and some also include the water height in the tank in the instruction manual. Some instructions also state that the input and output hoses should be approx. the same length.
Having said that, the usual issue is priming the filter when it is empty or after maintenance because it is more difficult to evacuate the air properly when the filter isn't located below the aquarium. Some aquarists try what you are attempting and have no problems, others do.
Just curious why you want to install the filter that way?
Having said that, the usual issue is priming the filter when it is empty or after maintenance because it is more difficult to evacuate the air properly when the filter isn't located below the aquarium. Some aquarists try what you are attempting and have no problems, others do.
Just curious why you want to install the filter that way?