The aquaball concept with external filter technology External filter technology and multi-layer filtration – that means: the water at the bottom is pumped to the top through the various filter layers and after filtration directed back into the tank. The closed filter baskets come prefilled with EHEIM SUBSTRATpro. Other filter media can also be used. The inlet basket contains a filter cartridge for the mechanical-biological prefiltration. In the pumphead holder a filter pad provides additional filtration. By adding or removing filter modules (filter baskets) you can adjust the filter volume as necessary. For extending the filter use ExtensionSET2 The filter baskets can be easily clipped together and released (Easy-Klick Locking System) Due to the modular construction the filter cartridges or media can be cleaned at different intervals thus preserving bacteria cultures. The ball shaped pumphead sits in a ball socket and can be turned right round. Thus the outflow of the filtered water can be aimed in any direction. The pump output and throughflow can be set by the control knob on the outflow nozzle. The power-diffusor is adjusted to regulate the air intake and thus the oxygen enrichment in the aquarium. (Instead of the diffusor, other extension pieces can be used; see accessories) The holder for biopower is simply fixed to the glass with suction cups. For cleaning, exchanging modules or filling with filter media, the filter is simply removed from its holder.
