Eheim Substratpro + Oxygen Select Size::1 liter With a maximum depth rating

With a maximum depth rating of 6 feet 7 inches

Replicates Marine Snow for Corals & other Suspension-Feeding Marine Invertebrates

Uniquely Formulated Nutrient Mix

Encourages your birds natural instinct to forage and play

Easy intake for fish helps with easy digestion and complete absorption of nutrients

Eheim Substratpro + Oxygen Select Size::1 liter With a maximum depth ratingEnhance 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