Beschreibung
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.
