Serenity Bio Sponge Filters – Premium Shrimp & Fry Safe Aquarium Filtration

Available in 5 Sizes: PICO | NANO | SMALL | MEDIUM | LARGE

The Serenity Bio Sponge Filter range is designed to deliver powerful, stable and shrimp-safe biological filtration for freshwater aquariums of all sizes. Whether you are setting up a shrimp tank, breeding system, nano aquarium, betta tank or a larger community aquarium, these air-driven sponge filters provide gentle flow, excellent oxygenation and reliable biological support.

Sponge filters are one of the most trusted filtration methods in the aquarium hobby — especially for shrimp keepers and breeders — because they are simple, safe and highly effective at supporting the nitrogen cycle.

Why Choose Serenity Bio Sponge Filters?

✔ Strong Biological Filtration

Each sponge is made from high-density foam that provides a large surface area for beneficial bacteria to colonise. These bacteria break down ammonia and nitrite, helping stabilise your aquarium’s nitrogen cycle and maintain safe water parameters.

✔ 100% Shrimp & Fry Safe

No exposed intake. No risk of baby shrimp or fry being sucked in. This makes Serenity Sponge Filters ideal for:

• Shrimp tanks (Neocaridina & Caridina)

• Breeding setups

• Fry grow-out tanks

• Betta aquariums

• Quarantine tanks

• Nano planted aquariums

✔ Gentle Water Flow

Air-driven filtration creates a soft upward current, improving oxygen exchange without creating strong water movement that stresses shrimp or delicate fish.

✔ Easy Maintenance

Simply rinse the sponge in removed tank water during water changes. No cartridges. No complicated parts. Long-lasting and cost-effective.

Available Sizes & Recommended Use

🔹 PICO Sponge Filter

Perfect for very small nano aquariums, shrimp cubes and breeding boxes. Compact but efficient, ideal for low bioload systems.

🔹 NANO Sponge Filter

Great for nano shrimp tanks and betta aquariums. Provides stable biological support without overpowering delicate livestock.

🔹 SMALL Sponge Filter

Suitable for small community tanks and established shrimp colonies. Increased sponge volume allows stronger bacterial colonisation.

🔹 MEDIUM Sponge Filter

Designed for mid-sized aquariums and breeding systems with moderate bioload.

🔹 LARGE Sponge Filter

Best suited for larger aquariums, grow-out tanks, breeding racks or tanks requiring higher biological capacity.

How It Works

When connected to an air pump, air travels up the lift tube, pulling aquarium water through the sponge. As water passes through:

1. Debris is trapped mechanically.

2. Beneficial bacteria break down ammonia and nitrite.

3. Clean, oxygenated water is released back into the tank.

This supports a stable and healthy aquarium ecosystem — particularly important for shrimp and fry.

Complete Setup – What You Need

Serenity Bio Sponge Filters require an air pump and airline tubing to operate.

For optimal performance, pair your sponge filter with one of our recommended air pumps:

• Dymax Airpump AP300 – Ideal for PICO & NANO setups
https://fishutaqua.com.au/products/dymax-airpump-ap300?_sid=b3eac78dc

• Dymax Airpump AP500 – Great for SMALL & MEDIUM sponge filters
https://fishutaqua.com.au/products/dymax-airpump-ap500?_sid=b3eac78dc

• Dymax Airpump AP700 – Suitable for MEDIUM & LARGE tanks or multiple sponge filters
https://fishutaqua.com.au/products/dymax-airpump-ap700?_sid=b3eac78dc

To connect your air pump to the sponge filter, you’ll also need airline tubing:

• Aquarium Airline Hose (Available in 1m, 5m, 20m & 200m)
https://fishutaqua.com.au/products/airline-hose-1m-5m-20m-200m?_sid=c6546df10

Using the correct air pump and quality airline hose ensures consistent airflow, efficient biological filtration, and optimal oxygen levels.

Ideal For:

• Shrimp aquariums

• Neocaridina & Caridina tanks

• Betta tanks

• Fry & breeding setups

• Nano aquariums

• Quarantine tanks

• Low-tech planted tanks

The Serenity Bio Sponge Filter range offers a simple, effective and shrimp-safe filtration solution for hobbyists who value water stability, biological strength and livestock safety.

Choose the right size for your tank, pair it with the appropriate air pump, and enjoy reliable, low-maintenance filtration designed specifically for shrimp keepers and aquarium enthusiasts.