High flow resistance due to dirty filter material or
filter material in net bag
Stopcock on pump head stiff
Cause
Washers do not glide
Fish dead and/or water cloudy
Cause
Nitrite poisoning due to too rapid change from
"old" to "new". Cleansing bacteria thrown away
with old filter.
Specially designed filter material for problem cases
(available at your specialist retailer)
12
Filter material with foam edging:
The following filter material sets are constructed according to a new two-stage principle
which is specially designed for the CristalProfi Filter of the e-range. It is comprised of a
core and an edging section. The core is made up of a relatively fine-pored special filter
material requiring a finely meshed net bag. The edging comprises medium-pored foam.
In this way the water flows slowly through the special filter material giving optimum
efficiency whilst at the same time the total water flow through the filter is obstructed as
little as possible thanks to the medium-sized pores of the foam edging. The size and
volume of each set is measured exactly for the filter basket of the JBL CristalProfi "e"
range.
JBL CarboMec Pad
Set with high-capacity active carbon
Eliminates medication residue, water discolouration and high molecular pollution from
fresh water and saltwater. No increase in conductivity and phosphate levels in the
water.
JBL PhosEx ultra Pad
Solves algae problems by reliably eliminating phosphate
24
Clean filter material and do not fill long-term
filter material (JBL MicroMec, JBL SintoMec)
in finely meshed net bags. For special problem
solutions, only use the original CristalProfi filter
material with the appropriate foam edge.
Solution
Dismantle hose connection block (7) and spray
the stopcocks with commercially available
silicone oil. Reassemble hose connection block
and move stopcock backwards and forwards a
few times.
Solution
Run an old and new filter parallel for 2 weeks in
the same aquarium or incorporate 1/3 of the old
filter material in the new filter. Never carry out a
"general clean up" of the aquarium at the same
time!