Hygger Aquarium Media High Surface Area Floating Moving Bio cleaner Sump Filter Media For Aquarium Fish Tank

More details about this filter media:
1.Unit dimension: Ø3/7" x 4/15"(Ø10*7mm)
2.Specific surface area: >1000m³/m³
3.Void ratio: >85%
4.Density: 0.94-0.97g/cm³
5.Packing numbers>990000pcs/cccc
6.Dosing ratio: 15%-70%
7.Material: HDPE
8.Life-span: >10years
9.Membrane forming: 5-15 days.

Directions for use:
1.Before putting the filter media into use, please wash the media first to wash the dust away so it will not make your tank cloudy.
2.When use for aquariums, please note to add the biofilm filter K1 media to the filtration sump, not directly to the fish tank.
3.No need to make too much of movement for the sump water,just use air pump to put air into water to make filter media to move a little.
4.After putting the K1 filter media into use, it's not need to maintain or clean it, just let it stay in where they are.
5.To get great filter effect, the maximum packing ratio of filler should be less than 70%.

2 weights available:
Weight 1: 2.4lbs/pack, total QTY is about 6600.
Weight 2: 7.9lbs/pack, total QTY is about 21600.