Blue Pet BL-8500F Aquarium Internal Liquid Filter 35 watts
The Blue Pet BL-8500F is a high-power 35W internal aquarium filter delivering up to 1500 L/H through a 4-stage filtration system, built to keep large and heavily-stocked tanks crystal-clear. Fully submersible, its multi-stage media traps fine and coarse debris, hosts beneficial bacteria for biological filtration, and aerates the water — strong enough for messy fish, big community tanks and predator setups where lesser filters struggle.
Why choose the Blue Pet BL-8500F?
- High 1500 L/H flow from a powerful 35W motor.
- 4-stage filtration for thorough mechanical and biological cleaning.
- Handles heavy bio-loads — ideal for messy or large fish.
- Fully submersible with strong aeration.
- Built for large community and predator tanks.
Specifications
| Brand | Blue Pet |
| Model | BL-8500F |
| Power | 35 watts |
| Max flow | 1500 L/H |
| Filtration | 4-stage |
| Type | Internal / submersible liquid filter |
Which tanks is it best for?
With 1500 L/H and 4-stage media, the BL-8500F suits large and heavily-stocked aquariums — around 4× turnover puts it at tanks up to roughly 375L, and it copes well with messy fish. For a smaller option see the BL-8400F (1000 L/H). See our most powerful aquarium filter guide.
How to set it up
Mount it inside the tank on the suction cups, fully submerged, and plug in. Keep it running 24/7, and rinse the media stages in old tank water (never tap water) when flow slows, cleaning one stage at a time to protect the bacteria. See how to clean an aquarium filter.
Frequently asked questions
What size tank is the BL-8500F for?
Large, heavily-stocked tanks up to roughly 375L, based on its 1500 L/H flow.
What are the 4 stages?
Multiple media layers provide coarse and fine mechanical filtration plus biological media for beneficial bacteria.
Is it good for messy fish?
Yes. Its high flow and 4-stage media handle heavy bio-loads from large or messy fish.
Is it fully submersible?
Yes. It runs underwater inside the tank.
How often should I clean it?
Rinse media in old tank water when flow drops; clean one stage at a time to preserve bacteria.
New to filtration? Read our complete aquarium filter guide and filter media guide.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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