Evolution Aqua K1 Micro Media 25L Food it is suitable for both

it is suitable for both indoor and outdoor display

With a bigger collection cup

Intake strainer

2 x bags of water treatment 5 ml - for two partial water changes on your biOrb

The head can also be used to replace the airstone

Evolution Aqua K1 Micro Media 25L Food it is suitable for bothK1 media has been used by Evolution Aqua in Koi filtration systems for a number of years. This new type of filter media, K1 Micro, contains all of the benefits of traditional K1 media but is extruded in a much smaller form. The small wheel shaped filter media pieces provide a significantly increased protected surface area per cubic metre when compared to standard K1 for bacteria to colonise. This makes K1 Micro an ideal filter media for aquariums of