Eheim Substratpro + Oxygen Select Size::1 liter A great addition for your

A great addition for your planted aquarium or terrarium & safe for freshwater or saltwater

These plastic non-corrosive valves are excellent for controlling any air source

Uniquely Formulated Nutrient Mix

Bringing a mystical element to your tank

High protein levels

Eheim Substratpro + Oxygen Select Size::1 liter A great addition for yourEnhance your aquarium ecosystem with the Eheim SUBSTRATpro+ Oxygen. This newest biological filtration from Eheim, the Substratpro + Oxygen increases metabolic activity, improves water quality, and makes water more clear. Thanks to the innovative +O2 function, which intensifies the filtration process through activated super oxygen (O2 ), both filter bacteria and the entire ecosystem benefit from superior oxygen supply. Features high porosity of 45% for