Oase Hel-X 13 Biological Media, 20 Liters Aquascape This is a higher protein

This is a higher protein formula that will provide your Koi with exceptional growth

for example

These replacement diaphragm kits fit the EasyPro Economy Air Compressors

2" fittings on all components

and optimized water level control

Oase Hel-X 13 Biological Media, 20 Liters Aquascape This is a higher proteinOase Hel X 13 Biomedia is a biological media used in the ProfiClear Premium Compact Filters and Modules. Biological filtration by colonies of beneficial bacteria remove toxic ammonia, ammonium and nitrites. Hel X Bio media has a huge ratio of protected inner surface versus exposed outer surface so the agitation caused by the turbulent water does not damage the bacterial colonies inside the media. This keeps colonies clean and active without a loss of