BIOLOGICAL FILTERS
Biological filtration is the action of bacteria in the tank breaking down dangerous ammonia, converting them to nitrites, and then the nitrites to the less toxic nitrates. Nitrates can be harmful to many invertebrates in high concentrations.
BIO BALLS
Bio Balls are used for biological filtration. The main advantage of bio balls over other biological media is that the surfaces are impossible to clog up (when used with a pre-filter). The reason is simple: the gabs of space within a bio ball is large and anything that can clog it up would already have been filtered by the pre-filter (such as filter wool, sponge etc). This is the reason why water filtration should always pass through mechanical filtration (pre-filter) before biological filtration.

Franklin SS 675/11
CRI ADL-9L3-09
20mm X 15mm Elbow 90° Female Thread
Wilo NL 80/160 Cast iron impeller
Franklin SVM 240/17
90? Bend long radius 150mm
Lorentz PS2-600 C-SJ5-8 solar borehole pump
Lorentz PS2-1800 C-SJ1-25 solar borehole pump
Clamp saddle 90 x 50
Lorentz PS2-1800 C-SJ5-12 solar borehole pump
wilo spi 06-045-03
wilo spu4-16-13 4kw
Lorentz PS2 150 CSJ 5-4 solar borehole pump
Pentax CHT160
CRI I prez 15N water pressure booster pumps
HT MFM32-160B 220v
MICRO HEAD 90 BRN PK 5
Lorentz PS2-1800 C-SJ17-2 solar borehole pump
Wilo STC 100 close coupled Open Impeller pump
Lorentz PS2-1800 C-SJ12-4 solar borehole pump
Lorentz PS2-600 HR-03H solar borehole pump
wilo stn 40 200b
DAB E.sybox mini VSD pump 220v 0.75kw
Elbow 90? 150mm
KSB Etanorm 050-032-125.1
Wilo Jet 3.4
Elbow 45? 15mm
Lorentz PSk3-7 C-SJ 30-6 Solar Submersible Pump
Elbow 90? MxF 40mm
Lorentz PS2 600 CS J8-5 solar borehole pump
Lorentz PS2-1800 C-SJ42-1 solar borehole pumps
Lorentz PS2 4000 CSJ 42-2 solar borehole pump 


