Yeah, I just noticed the drip plate, my bad.CHOMPERS;2879146; said:I saw the same illusion in the second picture that I<3fish did. The drip plate gave the illusion that the bio-balls were submerged. The wet/dry media is more efficient than submerged because it has the air as an O2 source. Japanese filters are extremely good at what they do because of their shear volume. The mechanical portions of the filter (mostly in 1st pic) also serve as bio-filtration. Since it is fully submerged, the bacteria gets its O2 from the water. If there is sufficient submerged media, it is possible for it to operate slightly anaerobic and consume nitrates. Ya can't argue with success.![]()
But honestly people, bioballs submerged under water is a complete waste of bio filtration. But since you have that free space, go for an FBF. A lot of us MFK'ers need all the bio filtration we can get.
