Prepare some gravel larger than 1/4” (6mm) (Screen out all
gravel smaller than 1/4”). The larger the gravel and thinner
the gravel bed, the faster waste will fall under the Bio-Plate
and be removed. If you do want to use gravel smaller than
1/4”, cover the Bio-Plate with a piece of fiberglass window
screen(you still need to screen out all small pieces).
Gravel bed : 1/4” to 1”
Fresh water : Gravel larger than 1/4” (6mm), like larger pea
Salt water : Substrate larger than 1/4” (6mm), like Taiwan
Coral Gravel # 5, #10, #15.
Connect flow pump to the flow pump plate with
elbow fittings, then attach the fish guard strainer
tube onto the flow pump.
Clean all parts and gravel in clean water before assembling.
Hang the filter box to a desired position on the back
or side of the tank. If the inlet adaptor is not on the
correct side of the filter box, take it off, adjust it and
put it on the other side.
Pick two block clips that best fit your tank (we include
4 block clips of two different sizes for you to choose),
clip these two block clips to the bottom rim of the filter
box from below. Afterwards, tighten the two screws on
the backside by hand to secure the filter box to the
Turn the lift pump outlet to face the back side of the
tank, connect the lift pump to the lift pump plate by
inserting its inlet into the inlet tube, then affix the lift
pump to the side of the tank with suction cups by
pushing the lift pump against the side of the tank.
Assemble all plates inside the tank into one
piece of Bio-Plate by connecting flow pipes
under each plate.