The CaddyStack™ Sponge - Pair of 2 is a reusable sponge add-on designed specifically for the CaddyStack™ Modular Filter Tower.
Each sponge features 3 layers of different density, helping create a balanced flow path while catching debris as water moves through your CaddyStack™. The layered design gives you a simple mechanical filtration option that can be placed inside the short tubes or short cages of the corresponding CaddyStack™ size.
These are made for reefers and aquarium keepers who already use the CaddyStack™ and want an easy, reusable sponge option for extra filtration flexibility. Instead of only relying on filter floss or loose media, the CaddyStack™ Sponge gives you a clean, drop-in solution that is easy to remove, rinse, and reuse.
Each pair is printed in the official Printed Reef clear/blue colorway.
Designed specifically for the CaddyStack™ Modular Filter Tower
Fits inside the matching short tube or short cage
Features 3 layers of different density
Helps catch debris while maintaining water flow
Great reusable mechanical filtration option
Made from flexible reef-safe plastic
Easy to remove, rinse, and reuse
Available only in the Printed Reef clear/blue colorway
Great for AIO/Sump filtration setups
Size Options
2.75" CaddyStack Sponge - Pair of 2
Fits the 2.75" CaddyStack™ Modular Filter Tower
Approximate sponge dimensions: 2.13" diameter x 0.59" tall Metric: 54 mm diameter x 15 mm tall
4" CaddyStack Sponge - Pair of 2
Fits the 4" CaddyStack™ Modular Filter Tower
Approximate sponge dimensions: 3.07" diameter x 0.59" tall Metric: 78 mm diameter x 15 mm tall
7" CaddyStack Sponge - Pair of 2
Fits the 7" CaddyStack™ Modular Filter Tower
What’s Included
2x CaddyStack™ Sponges
CaddyStack™ Modular Filter Tower sold separately.
Important Fitment Note
Choose the sponge size that matches your CaddyStack™ size. These sponges are designed to fit inside the short tubes or short cages of the corresponding CaddyStack™ Modular Filter Tower.
Only available in the Printed Reef clear/blue colorway.
