Sobo SB-333 Aquarium Sponge Filter – Compact Enclosed Bio-Sponge with Ceramic Media Chamber

Sobo SB-333 Aquarium Sponge Filter – Compact Enclosed Bio-Sponge with Ceramic Media Chamber

Maintain a crystal-clear, highly oxygenated environment for your aquatic pets with the Sobo SB-333 Aquarium Sponge Filter. Perfect for nano tanks, breeding setups, shrimp enclosures, or as a reliable secondary filter, this compact unit utilizes an efficient "airlift system" to combine powerful water purification with gentle water circulation.

Unlike traditional bare-sponge filters, the SB-333 features an advanced enclosed acrylic cylinder. This intelligent design forces water directly through the media, ensuring there are "No deads spots in cylinder foam" for vastly "increased filtration" efficiency. It safely protects delicate fry while creating a pristine "living environment for your fish".

Key Features & Benefits

• Dual-Stage Filtration System: Features a two-part media system. The top layer consists of a dense black "Filter cotton" (sponge) to trap floating physical debris, while the bottom chamber is packed with "Biological beads" to house massive colonies of beneficial bacteria.

• Superior Biological Cleaning: The specially developed foam and ceramic beads actively support the "colonization of bacteria," which naturally breaks down "harmful waste, ammonia and nitrite materal" to keep your water parameters stable and safe.

• Quiet & Efficient Aeration: Powered by an external air pump (sold separately), it features an internal "Air stone" that breaks down bubbles to reduce "noise from air pump" while efficiently "oxyagenating the water".

• Modular & Easy Maintenance: The smart "nodular design" allows you to easily open the "Case cover online" to rinse the sponge or replace the biological beads without having to remove or replace the entire filter housing.

• Weighted Base: Equipped with a sturdy bottom "Base" to keep the unit firmly planted on the aquarium floor, preventing it from tipping over or floating.

How It Works

1. Connect your airline tubing to the "Tracheal joint" on the side of the filter body.

2. As air from your pump is dispersed through the internal "Air stone", it rises up the central lift tube.

3. This rising air creates a gentle vacuum, pulling dirty tank water through the outer slots, into the "Filter cotton", and over the "Biological beads".

4. Clean, highly oxygenated water is seamlessly returned to your aquarium through the top nozzle.

Technical Specifications

Maintenance Tips

To ensure your biological filtration remains effective, never wash the "Filter cotton" or "Biological beads" under unchlorinated tap water. Always gently squeeze the sponge out in a bucket of old aquarium water during your routine water changes to keep the beneficial bacteria alive.