I'm in the process of sorting my new 3/400 gal tank for my Rays.
Will be a 7x3 footprint and like the look of having two ultra reef overflows as they are very flush and out through side of the aquarium meaning more floor space for rays and no unsightly weir.
However I guess I'll be running approx 12000 litres per hour turnover, but the overflows say they are rated for 1000-1500 kph which seem very low as its a 50mm pipe.
Anyone had any experience with these?
At 55£ each they're not cheap so want to get any feedback first!!
Thanks

Will be a 7x3 footprint and like the look of having two ultra reef overflows as they are very flush and out through side of the aquarium meaning more floor space for rays and no unsightly weir.
However I guess I'll be running approx 12000 litres per hour turnover, but the overflows say they are rated for 1000-1500 kph which seem very low as its a 50mm pipe.
Anyone had any experience with these?
At 55£ each they're not cheap so want to get any feedback first!!
Thanks
