Atman AT-F Series Internal Aquarium Filter
Keep your aquarium water clean, clear and healthy with the Atman AT-F Series Internal Aquarium Filter. This submersible aquarium water filter is designed for freshwater fish tanks and provides efficient mechanical filtration, steady water circulation and optional oxygen support.
The built-in filter sponge helps capture fish waste, debris and suspended particles from the water. Its low-noise, energy-efficient motor and easy suction-cup mounting make it a reliable fish tank filter for daily aquarium use.
Choose the Right Model
Model Suitable Tank Size Flow Rate Best For AT-F101 Up to 1 ft aquarium 350 L/H Small desktop and nano aquariums AT-F102 1 ft to 2.5 ft aquarium 500 L/H Small freshwater fish tanks AT-F103 2.5 ft to 3.5 ft aquarium 1200 L/H Medium aquariums needing stronger circulation AT-F104 3.5 ft to 5 ft aquarium 2000 L/H Large aquariums with higher filtration needs Key Features
- High-efficiency submersible motor for reliable water circulation
- Internal aquarium filter with easy suction-cup installation
- Low-noise operation for comfortable daily use
- Built-in filter sponge for mechanical filtration
- Helps capture fish waste, debris and visible impurities
- Air-intake function supports oxygen circulation
- Energy-efficient motor suitable for continuous operation
- Durable impeller for reliable performance
- Filter sponge is easy to remove, wash and replace
- Beginner-friendly installation and easy maintenance
- Suitable for freshwater aquariums
Technical Specifications
Model Power Flow Rate Maximum Head Filter Boxes AT-F101 4W 350 L/H 0.6 m 1 AT-F102 6W 500 L/H 1.05 m 2 AT-F103 11W 1200 L/H 1.2 m 2 AT-F104 28W 2000 L/H 2 m 2 Atman AT-F101 Internal Aquarium Filter
Atman AT-F101 Internal Aquarium Filter – 4W, 350 L/H
The Atman AT-F101 is a compact internal aquarium filter designed for small freshwater fish tanks. With a 350 L/H water flow rate, it provides smooth water circulation and mechanical filtration to help keep aquarium water cleaner.
Its built-in filter sponge traps visible dirt and fish waste, while the air-intake feature helps support oxygen circulation. Easy suction-cup fitting makes installation and cleaning simple.
Ideal for: Small aquariums
Suitable Tank Size: Up to 1 ft aquarium
Power: 4W
Flow Rate: 350 L/H
Maximum Head: 0.6 m
Filter Boxes: 1Atman AT-F102 Internal Aquarium Filter
Atman AT-F102 Internal Aquarium Filter – 6W, 500 L/H
The Atman AT-F102 Internal Aquarium Filter is a reliable aquarium water filter for small to medium freshwater tanks. Its 500 L/H flow rate provides steady water movement, while the two filter boxes offer improved filtration capacity.
This submersible fish tank filter includes a removable sponge that helps remove waste and suspended particles. It is energy-efficient, quiet and convenient for regular aquarium maintenance.
Ideal for: Small to medium aquariums
Suitable Tank Size: 1 ft to 2.5 ft aquarium
Power: 6W
Flow Rate: 500 L/H
Maximum Head: 1.05 m
Filter Boxes: 2Atman AT-F103 Internal Aquarium Filter
Atman AT-F103 Internal Aquarium Filter – 11W, 1200 L/H
The Atman AT-F103 is a high-flow internal aquarium filter suitable for medium-sized freshwater fish tanks. With a powerful 1200 L/H flow rate, it helps create stronger aquarium water circulation and supports efficient mechanical filtration.
Its dual filter-box design provides more filtration space, while the built-in sponge helps trap fish waste and visible impurities. The air-intake function can also support oxygen circulation inside the aquarium.
Ideal for: Medium aquariums
Suitable Tank Size: 2.5 ft to 3.5 ft aquarium
Power: 11W
Flow Rate: 1200 L/H
Maximum Head: 1.2 m
Filter Boxes: 2Atman AT-F104 Internal Aquarium Filter
Atman AT-F104 Internal Aquarium Filter – 28W, 2000 L/H
The Atman AT-F104 is a powerful internal aquarium filter designed for large freshwater aquarium setups. With a high water flow of 2000 L/H, it helps maintain strong circulation and cleaner water in larger fish tanks.
The two filter boxes and built-in sponge support effective mechanical filtration by trapping waste, debris and suspended particles. This high-performance submersible aquarium filter is easy to install, clean and maintain.
Ideal for: Large aquariums
Suitable Tank Size: 3.5 ft to 5 ft aquarium
Power: 28W
Flow Rate: 2000 L/H
Maximum Head: 2 m
Filter Boxes: 2Cleaning & Maintenance Instructions
- Switch off the filter and unplug it before cleaning.
- Remove the filter carefully from the aquarium.
- Open the filter box and take out the filter sponge.
- Rinse the sponge gently in aquarium water to protect beneficial bacteria. Do not use soap, detergent or hot water.
- Clean the filter box, impeller and water outlet to remove dirt or blockage.
- Reassemble all parts properly and fix the filter back inside the aquarium using suction cups.
- Ensure the filter is fully submerged before switching it on.
- Clean the sponge regularly and replace it when it becomes damaged or does not clean properly.
Cleaning Frequency: Clean every 1–2 weeks, depending on fish load and water condition.
Reviews
Using the Atman Internal Filter from Blessings Aquarium and it’s been fantastic! Super quiet and super efficient—keeps my tank crystal clear without any noise. The build quality is solid and it even comes with a warranty, which adds extra confidence. Perfect for my medium-sized tank and runs smoothly 24/7. Great value for money and reliable performance. Highly recommended for anyone looking for a dependable internal filter!