How should this filter be positioned in the tank?

The filter must be fully submerged. For small fish, place it upright near the bottom. For larger fish or turtles, it can be positioned upright or sideways while staying off the bottom for better circulation.

Why did the pump lose power or stop working?

Check that all pipes are tight with no air leaks, ensure the oxygen tube remains outside the tank, and gently clean the impeller and internal chamber if clogged.

Why isn’t my water clear yet?

For best results, use the filter with gravel and plants, avoid overfeeding, perform regular water changes, clean the tank, and limit direct sunlight to control algae.

How do I clean the filter sponge?

Rinse the sponge gently in old tank water, lightly squeeze to remove debris, avoid tap water, and replace only if it becomes worn or misshapen.

Submersible Aquarium Filter 450 GPH for 50–300 Gallon Fish & Turtle Ta

Submersible Aquarium Filter 450 GPH for 50–300 Gallon Fish & Turtle Tanks

902F For 15-50 Gallon Tanks

$49.99

$49.99 $0.00

Submersible Aquarium Filter 450 GPH for 50–300 Gallon Fish & Turtle Tanks

$49.99

$49.99 $0.00

Internal Aquarium Filter – 450 GPH Submersible Filter for Large Tanks

Powerful & Efficient Water Circulation:
Designed for large aquariums, this internal aquarium filter delivers a strong 450 GPH flow rate to support clear, well-circulated water. Suitable for 50–300 gallon fish tanks, turtle tanks, and small ponds, it helps improve overall water clarity in both freshwater and saltwater environments.

6-in-1 Multifunctional Design with Check Valve:
This versatile filter combines filtration, oxygenation, wave-making, debris collection, water circulation, and water changes into one compact unit. The bottom debris tray captures uneaten food and visible waste, while the built-in check valve activates when lifted to help keep the tank clean during maintenance.

Dual Valve Control & Ultra-Quiet Operation:
An adjustable outlet allows you to direct water flow without disturbing smaller fish, while a separate air valve lets you fine-tune oxygen output. Operating at under 25 dB, this whisper-quiet filter creates a calm environment for both aquatic pets and their owners.

Reusable High-Efficiency Bio Sponge:
Equipped with dense biological filter media, the reusable sponge supports natural biological filtration to help maintain stable water conditions. Rinse gently with tank water to preserve beneficial bacteria and avoid wringing to maintain sponge shape.

Easy Setup & Flexible Placement:
Tool-free assembly allows for quick installation in minutes. The filter can be placed vertically or horizontally as long as it remains fully submerged, making it easy to adapt to different tank layouts.

Why Aquatic Pet Owners Love It

High-flow 450 GPH filtration for large tanks
6-in-1 design with debris tray and check valve
Quiet operation under 25 dB
Reusable bio sponge supports stable water quality
Tool-free installation with flexible placement options

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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.

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