Why does this filter not have charcoal?

I agree with first person's answer. In my 20 years of experience, charcoal is not needed in the hobby outside of removing medications from the water if no longer needed. Other than that, charcoal only helps to mask the problems you are developing in your tank that more regular water changes or more biological filtration can help resolve. Personally, I feel charcoal is a waste of money and I say use that space to add more biological filtration (or mechanical if you don't already have a spot for that) and do more regular water changes.

Can this be placed on the bottom of the tank with the output water stream facing up? Suction cups facing down.

This pump pushes a lot of water. If you have a big deep tank, it would probably be fine otherwise you could be cleaning water off the floor. Good luck!

What is it dimension? Can I put it horizontally

Yes it can be put horizontally. I have it in my turtle tank 75 gal. It’s very powerful flow. The dimensions are 7x2.

please tell me how to open this darn thing to remove/see the filter? Thank you!

We finally got it open after a twist/snap motion.

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Submersible Aquarium Internal Filter 12W, Adjustable Fish Tank Filter with 320 GPH Water Pump for 50-150 Gallon Fish Tank

Submersible Aquarium Internal Filter 12W, Adjustable Fish Tank Filter with 320 GPH Water Pump for 50-150 Gallon Fish Tank

Product ID: 149099613

Details

Brand
NO.17
Color
Black
Horsepower
12 Watts
Item Weight
1.5 Pounds
Material
Acrylonitrile
Maximum Flow Rate
5.3 Gallons

⚡12W power for large tanks

💧320 GPH adjustable flow

🔄4 versatile nozzles

₩67478

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Description

🐠 Elevate your aquarium game with whisper-quiet power and precision flow!

POWERFUL 12 W MOTOR - Optimized for 50-150 gallon tanks, delivering efficient filtration without energy waste.
MULTI NOZZLE VERSATILITY - Choose from 4 nozzles to tailor water flow patterns, ensuring every corner of your tank stays pristine.
CUSTOMIZABLE 320 GPH FLOW - Adjust water circulation to suit your aquatic ecosystem’s unique needs with ultra-quiet operation.
SLEEK SUBMERSIBLE FLEXIBLE - Compact design fits odd-shaped tanks, mounts horizontally or vertically, and is fully submersible for seamless integration.
ADVANCED MULTI MEDIA FILTRATION - Combines mechanical, chemical, and biological filtration for crystal-clear, healthy water.

The NO.17 Submersible Aquarium Internal Filter is a 12W powerhouse designed for 50-150 gallon tanks, featuring an adjustable 320 GPH water pump and 4 interchangeable nozzles. Its multi-media filtration system ensures a clean, healthy aquatic environment, while the compact, fully submersible design offers flexible installation options. Built with durable, corrosion-resistant materials and ultra-quiet operation, it’s perfect for both freshwater and saltwater setups.

Specifications

ASIN	B07SZLBGGW
Best Sellers Rank	#25,320 in Pet Supplies ( See Top 100 in Pet Supplies ) #112 in Aquarium Filters
Brand	NO.17
Brand Name	NO.17
Color	Black
Customer Reviews	4.1 out of 5 stars 887 Reviews
Flow Rate	5.3 Gallons Per Minute
Horsepower	12 Watts
Included Components	1
Item Weight	1.46 Pounds
Manufacturer	NO.17
Material	Acrylonitrile Butadiene Styrene , Plastic
Material Type	Acrylonitrile Butadiene Styrene, Plastic
Maximum Lifting Height	3.9 Feet
Model Number	HY-1200F
Power Source	Corded Electric
Product Style	black
Specific Uses For Product	Active
Style	black
Unit Count	1 Count

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₩67478

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In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

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