Blue Pet BL-773W Multi-Section Bio Top Filter (10W, 700L/H)
The Blue Pet BL-773W is a multi-section bio top filter delivering up to 700 L/H from a 10W pump, sitting neatly on top of the tank to give complete mechanical, chemical and biological filtration in one transparent, multi-compartment unit. Water trickles down through the media trays for excellent oxygenation and crystal-clear results, and the clear body lets you see at a glance when it needs cleaning. A complete overhead filtration system for small-to-medium aquariums.
Why choose the Blue Pet BL-773W?
- 700 L/H flow from a 10W pump for thorough water turnover.
- Multi-compartment trays for mechanical, chemical and biological media you can customise.
- Trickle (wet/dry) action that oxygenates the water beautifully.
- Transparent body so you can see when cleaning is due.
- Space-saving overhead design.
Specifications
| Brand | Blue Pet |
| Model | BL-773W |
| Power | 10 watts |
| Max flow | 700 L/H |
| Voltage | AC 220-240V, 50-60Hz |
| Type | Top / trickle filter |
Which tanks is it best for?
With 700 L/H, the BL-773W suits small-to-medium tanks up to roughly 175L at around 4× turnover. For a slightly smaller pump see the BL-772W (600 L/H). Compare formats in canister vs HOB vs sponge and see our filter media guide.
How to set it up
Sit the filter on top of the tank, load the trays (mechanical first, then chemical and biological), prime the pump and plug in. Keep it running 24/7, and rinse the mechanical media in old tank water (never tap water) when flow slows. See how to install an aquarium filter.
Frequently asked questions
What size tank is the BL-773W for?
Small-to-medium tanks up to roughly 175L, based on its 700 L/H flow.
What is a trickle (top) filter?
Water trickles down through the media in contact with air, which greatly improves oxygen exchange and biological filtration.
Can I customise the media?
Yes. The multi-compartment trays let you arrange mechanical, chemical and biological media to suit your tank.
Does it oxygenate the water?
Yes. The trickle action and return flow give strong oxygenation.
How often should I clean it?
Rinse the mechanical media in old tank water when flow drops, usually every 2–4 weeks.
New to filtration? Read our complete aquarium filter guide and how aquarium filters work.
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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