Hi, just installed. The pump is very (very) noisy. Is there something wrong with my pump or am I missing something as you can only plug it in.

Mine is really quiet, it only vibrates loudly if touching anything accidentally. You'd probably need to send it back, otherwise it's a great air pump and does the job

Is the strength of the pump adjustable?

The output strength (the amount of bubbles) is adjustable via a valve

Can this be used in a large fish bowl and would it be ok for betta fish?

this pump is for tanks 10 to 60 litres for tanks 50 to 100 litres http://www.amazon.co.uk/Tetra-T282-APS100-Air-Pump/dp/B000S5JMVU/ref=sr_1_fkmr0_1?s=pet-supplies&ie=UTF8&qid=1447591969&sr=1-1-fkmr0&keywords=extra+aps if your not sure how many litres your tank is heres a link to a calculator http://www.ifocas.org/calculator.htm hope this helps

could i use this pump for a sponge filter?

I'm not up on EVERY kind of sponge filter but mine is powered by an air pump. It's made to be. If you have the kind with a cylindrical spunge, wrapped round a plastic moulded core, which has an air line attachment, then 'yes'. Some have a single sponge and weighted base. Some have 2 sponges and a sucker mount. The flow of bubbles up a column within the core of the sponge effectively creates a vacuum effect that sucks the flow of water through the sponge. With those kinds of sponge filters, that have fittings for attaching an airline, you need an air pump to power them. They're cheap but source an appropriately powered/ sized pump according to the volume of water you have in your tank. Pump makers supply this info in listings or on boxes, usually in litres, to help you with choosing the right one.

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Tetra APS50 Silent Aquarium Air Pump for Fish Tanks,Black,10 - 60 Litre

Product ID: 47975976

Details

Brand
Tetra
Colour
Black
Item weight
0.2 Kilograms
Material
Rubber
Product dimensions
11L x 11W x

💨50 L/h airflow

🔇virtually silent operation

🦾durable vibration-absorbing feet

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Description

🐠 Silent strength for your aquatic sanctuary

COMPACT POWERHOUSE - Despite its small 11cm cube size, it delivers a robust 50 litres per hour airflow, ideal for medium and small tanks.
PLUG PLAY CONVENIENCE - Comes with a 2m power cable and air tap valve for easy setup—just add your preferred air stone and tubing.
RELIABLE LONG LASTING - Crafted with high-quality rubber and membrane for consistent performance and 3 years EU spare part availability.
PRECISION AIRFLOW CONTROL - Adjustable air tap lets you dial in the perfect oxygen flow for tanks from 10 to 60 litres—no more guesswork.
WHISPER QUIET OXYGEN BOOST - Sound-absorbing chambers and vibration-dampening feet ensure your aquatic friends enjoy peace and calm.

The Tetra APS50 Silent Aquarium Air Pump is a compact, mains-powered device designed for fish tanks between 10 and 60 litres. It delivers a steady 50 litres per hour airflow with minimal noise thanks to sound-absorbing chambers and vibration-absorbing rubber feet. Featuring an adjustable air tap for precise oxygen control, it’s perfect for cold, tropical, and marine tanks. Lightweight and reliable, it includes a 2m power cable and supports easy integration with air stones and tubing (sold separately).

Specifications

ASIN	B0055F7G0C
Air Flow Capacity	50 Litres Per Hour
Best Sellers Rank	3,808 in Pet Supplies ( See Top 100 in Pet Supplies ) 7 in Aquarium Air Pumps
Brand Name	Tetra
Colour	Black
Country Of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (1,362)
EU Spare Part Availability Duration	3 Years
Global Trade Identification Number	04004218143227
Hose Length	2 Metres
Item Dimensions L x W x H	11L x 11W x 11H centimetres
Item Type Name	Tetra Air Pump Aps50
Item Weight	0.2 Kilograms
Manufacturer	TEZSY
Manufacturer Part Number	T281
Material Type	Rubber
Model Number	T281
Number of Items	1
Number of Packs	1
Operation Mode	Automatic
Power Source	Corded Electric
Unit Count	1 count

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$44.19

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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