| hi there,
first off all,i'd like to apologise for my poor english(i'm from holland)
i build my first pond 3 years ago and it was filtered by 3 votexes (1 as vortex and 2 with jap.mat)first but they were very hard to keep clean(blanket weed sliiping trough the vortex and stuffing up the mats wich restrained the water flow)
2 years ago i traded the vortexes for a sieve (as a prefilter) and a beadmaster(a dutch beadfilter) wich is good for 20.000 liters(no idea how much it is in gallons)
and my pond is 12.000 liters.
i now have crystal clear water with no bad readings at all and i have no additional biofilter at all,only a uv light(55 watts) and this spring i am going to build a plant filter for the removal of nitrates and stuff.
as i say,it is very common here to use a beadfilter with a pre filter for the whole thing,but we backwash every other day(in summer)and almost erveryone is satysfied about it,and it can handle a lot of fish too.
groeten
wilco |