Can I use a powerhead filter meant for a 30 gallon tank for my 15 gallon aquarium?

Question

My aquarium is 15 gallon. I want to install a powerful filter, but is a powerhead filter that pumps 290gph too powerful? Will it damage the tank or harm the fish? Thank you for your input.

Answer 1

It should be fine, but make sure you dont get long finned fish like bettas that don't like too much current.  They'll get blown all around.  Unless you make a blocker or something on the outflow.

Answer 2

Yes it will be fine, the current will be good for the fishes gills. I wouldn't go any more than that though.

Answer 3

Yes, the filter will be cleaning the water double what the recommended is.  That will mean less work on you for cleaning and scrubbing.

Answer 4

no it won't hert the fish unless they get sucked up into it