API Marine Marine Stress Zyme 16oz Substrate - 180° rotation of the

- 180° rotation of the water outlet (submersed use)

You can choose from 7 colors

Works great and is a must have for breeders

reduced energy consumption & ultra-quiet operation

small [platy]helmenthics and annelids

API Marine Marine Stress Zyme 16oz Substrate - 180° rotation of theAll natural API MARINE STRESS ZYME Saltwater Aquarium Cleaning Solution contains beneficial, live bacteria that are uniquely suited to consume sludge and keep aquariums clean. STRESS ZYME keeps glass, live rock and sand clean and boosts the natural aquarium cycle, reducing aquarium maintenance over time. STRESS ZYME breaks down organic compounds that cause dangerous conditions such as ammonia and nitrite poisoning and low oxygen levels. Use weekly for