Lithaqua

Stabilise your water chemistry, prevent dangerous pH crashes, and support biological filtration with our range of authentic Lithaqua filter media. Sourced from natural calcified marine algae, Lithaqua acts as both a powerful biological housing and a self-regulating mineral buffer, making it an essential addition for dedicated koi ponds and recirculating aquatic systems.

Featuring a micro-porous skeletal structure, Lithaqua provides an immense surface area for colonies of beneficial nitrifying bacteria to colonise and break down dissolved fish waste. As water passes through the media, it slowly and continuously releases vital calcium, magnesium, and trace elements, bolstering carbonate hardness (KH) to maintain a stable, alkaline pH without the sudden parameter spikes associated with chemical additives. This rich mineral background not only protects your bio-filter against acidic conditions during periods of heavy rain or high feeding but also enhances the natural colour, white ground, and skin lustre of your koi. Suitable for use in multi-bay filter compartments, shower systems, or submerged media bags within aerated filter chambers, explore our complete Lithaqua collection to find natural mineral media engineered for balanced, crystal-clear water quality.