polyester-reusable-zipped-media-bags Reef Essential 15ppm) and Potassium by ~0

15ppm) and Potassium by ~0

and the aquarium is cycled

Then add to your aquarium where there is high water flow

or other major parameter swing

polyester-reusable-zipped-media-bags Reef Essential 15ppm) and Potassium by ~0Heavy duty, re useable Polyester Media Bags 800 micron with zipper. Securing your media has never been easier; simply un zip, fill it up with your choice of media, zip it up, rinse and place into your aquarium. Easy, Affordable, and High Quality. Bag Size Total Volume 150x150mm min 500ml 200mm x 200mm min 1250ml 250mm x 250mm min 2500ml Contents: 1 x 150mm x 150mm 800 micron reusable polyester media bag with zipper 1 x 200mm x 200mm 800 micron