Ceramic Bio Rings - Filter Media For Aquarium Fish Tank Filters - Two Large 1kg bags - Total approx 400 bio rings 2Kilos in total. Free zip mesh bags.


Great for your internal or external canister filter. Can be used in sumps as well to harvest all that lovely beneficial bacteria us fish keepers love. We won’t be beaten on price or quality.


Looking for a premium complete filter media? Check out our Ocean Free product range.


Premium porous Ceramic Bio Ring's provide a greater air surface for bacterial development and help decompose ammonia and nitrate efficiently.

Ring size: approx. 16mm, hole 6mm) 800 m2/L


The ceramic material will withstand any chemical reaction and is suitable for both Fresh and Salt water Fish Tanks and is perfect for use in Internal / External Pond & Aquarium filters.


Highly Porous.


Non-toxic.


High surface area to encourage the growth of nitrifying bacteria.

Reduces ammonia, nitrite and Nitrate.


Can be used for both saltwater & seawater.


Long life rings that do not disintegrate like others in the market


At SED Aquatics we only sell genuine products. We are slowing re circulating systems run in our Discus / Pleco fish room. So it’s a great time to grab a bargain on either our Brand New items or our used in house products. Being a hobbyist for over a decade I am passionate about the wonderful fish keeping hobby, and only put our name to quality yet affordable products.


Not quite what your looking for? No problem, why not check out our other Aquatic products. We stock new & used filters, heaters, filter media, LED lights and much more.


Happy Fish keeping folks!!!!