For the siphon suction screen you can use 500um instead of 90um and still not suck up more fry than using he 90um mesh. This will allow removing larger 'dirt' particles and more efficient tank cleaning.

Last edited by Bill Cody; 04/19/21 08:45 PM.

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management