Top 6 Mini Scuba Tank : A look at the best out there.

Mini Scuba Tank

Mini scuba tanks also known as minidive are practical, efficient and lightweight. Unlike large scuba tanks. They offer a great perspective on what is possible with a minimalistic design. Mainly suitable for recreational use. While they might not be an option for cave diving. Mini scuba tanks work fine for the average diver or if you want to explore shallow coral reefs when scuba diving. They are handy as a refillable mini scuba tank. so we have taken time looking into these, we have spoken with some experienced divers and looked at all their feedback to show you six of the best mini scuba tanks out there.


A Quick look at the Mini scuba tanks we will be reviewing




Sometimes called pony bottles. Divers often carry a mini scuba tank with them to act as a redundant air source in case of an emergency underwater. While these can be used relatively safely. At shallow depths of under three meters to clean a boat or swimming pool or even do some light exploring,

Mini scuba tank benefits

Online forums tell tales of mini scuba tank benefits which are hard to overlook. Even new divers need their reliability. Diving for a few minutes becomes a different experience with a mini compressed air tank. The benefits include those listed below.

Lightweight practicality

Quick oxygen charging

Compatibility with K-connectors and DIN connectors

Fitted with gauge meters

Added comfort with silicone mouthpieces

Oxygen reserve in case of fire emergencies

Most mini scuba dive tanks can actually be used for other purposes as well. However, unlike large scuba oxygen tanks, they cannot be used in long diving sessions. With 50 to 60 mouths of airs to rely on with the average product, it’s clear that these tanks are not made for deep dives, but can be used as spare air. However, they add to the scuba diving freedom and experience. As all divers can go deeper than simply relying on holding their breaths.


The Mini scuba dive tank is a French invention that will revolutionize the practice of scuba diving. The Mini Dive weighs only 2.5 kg, and its capacity of 0.5 liter will allow you to go down to 5 meters deep so good to have spare air. While stay between 5 to 10 minutes underwater. To recharge it, it is quite simple, a bike pump will be enough, and it will take you 15 minutes to use the hand pump and fill it up. If this seems too tiring for you, no problem, you will only need to use a conventional diving compressor. It is also possible to replace the empty compressed air cylinder with one already filled.

The following scuba tanks are among the few designs. Which offer total freedom for those seeking to dive for a few minutes.



SMACO Scuba Tank Dive Cylinder



The Smaco Underwater Device(340 Breathe Times) S400 1L Dive Equipment Packages

The diving tank has a capacity of 1L, and can be used for 340 underwater breaths at full capacity. It can be used for 15-20 minutes of diving time. The weight of the product is 5.07 pounds, with a portable bag, you can easily carry it and free your hands to do more things underwater.

You can use any type of manual pump to inflate the scuba tank at any time, and you can inflate it with a high-pressure inflator. In addition, if you have an electric air pump at home, it will leave you more time and money, great for scuba divers.

The scuba tank is equipped with a real time pressure gauge for the diver to know the rest dive time easily, even a novice diving can use it safely. The pressure gauge is real handy.



What work Well   

What didn’t

  This spare tank design is a perfect backup for diving  adventures and a great training tank

  Super easy to breath off of!

  It is well made and durable.

  The regulator works really well

Time range is inconsistent


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Scuba Tank 0.5L


The diving tank has a capacity of 0.5L, and can be used for 170 underwater breaths at full capacity. It can be used for 5-10 minutes of diving time. The weight of the product is 2.38 pounds, allowing you to easily use it underwater.

You can use any type of manual pump to refill the scuba tank, and you can also refill it with a scuba tank adapter. In addition, if you have an electric air pump at home, it will leave you more time and money. The diameter of the refill inflatable interface is 8 mm, with silicone mouthpiece. 

The entire body made of aerospace aluminum alloys better resists internal corrosion and stands up well to damage. Smaco cylinders are relatively small, yet very strong containers that hold large volumes of compressed gas. Make sure you get prepared on your next dive with one of our air tanks made from high-strength aluminium alloys.



What worked well

What didn’t

  You can stay underwater between five and ten minutes depending on your breathing rate.

  This tank is so small and portable. It is very convenient

  This is a nice tank for playing around with and helps with getting used to using a regulator

  It appears to be very well made and is easy to assemble.


  Only managed to stay underwater for 20 breaths ( with the tank at 1-1.5bar)


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Qians S300 Pro Smaco Diving Tank  


Smaco scuba diving tank doesn’t add any drag even if you have to carry the tank a long way. Our diving tank gives you great access to the valve and regulator and allows you to hand it over to your buddy in case of emergency. Smaco pony bottles are compact and easy to use, with their own sophisticated compact regulators. Its compact size makes it easier to carry and helps you capture the freshness of the air wherever you need it.

This oxygen tank for diving was made of aviation aluminum, standard portable oxygen tank parameters manufacturing, and met the manufacturing standards of diving equipment.

One of the great things about Smaco Scuba Dive Cylinder is that they are not limited to a specific area of your diving. Smaco pony bottles can be used more than just for shallow diving. If you already have your main unit and are looking for a self-rescue emergency backup, great for scuba divers.

Beyond that, this cylinder endows with a pressure gauge, so tank pressure can be easily read. You could get your diving condition from the luminescent face and color-coded pressure levels easily all on the pressure gauge.

It allows you to breathe about 57 air outlets on the surface and about 21 times under the water.It usually keeps you staying around 10 minutes under 7-meters water But used time is flexible from 5-10 minutes according to different people`s vital capacity, diving depth etc.





What worked well

What didn’t

  The foster setting makes it easy to fill with an SCBA adapter

  Fits well in the mouth

  Easy to use and breath through

  Very difficult to pump up

  Pump does not effectively


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Roadwi Smaco S400 


The S400 scuba diving tank is specialized in long-lasting breathing and constant pressure. Compared to other diving tanks used underwater for 10 minutes, S400 can be used underwater for 15-20 minutes with enough oxygen left when you are diving to the bottom of the water. Note: Before diving make sure the air tank gate is open.

The upgraded submersible breathable mouthpiece is made of food-grade silicone material, which is safe, odorless, soft and durable. The shape of the mouthpiece is ergonomically designed so that you won’t feel uncomfortable while diving. (Note: The breather mouthpiece is tightly connected to the breathing valve to prevent air leakage.)


The pressure relief valve of the upgraded S400 scuba bottle is at the top, and it can be easily relieved with moderate force. It has a powerful filtration system with one-way inflation filter, double filter gas, 0.03 Micron first-stage filtration and polymer secondary filtration to make sure you breathe clean air all the time. (Use Note: press the pressure relief drain when you are ready to inhale after entering the water) with a pressure gauge.

Specific refillable design saves the trouble of taking the device apart to fill your tank. Three pneumatic ways: 1. Manual high-pressure pump. There is no need for any skills and easy to operate. 2. With a scuba adapter. You can easily pump the air into the bottle. 3. Electric air pump. It needs only several minutes to refill the dive bottles. S400 B Set contains a fill adapter.






What worked well

What didn’t

  It’s safe and enjoyable to use

  Equivalent of 3 normal tanks

  Easy to use

1st stage regulator leaks by the valve


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Spare Air Original Mini Scuba Tank 


 The Spare Air system is designed to be simple so you can access your backup air any time. This spare air refillable cylinder can be handed off to a fellow diver in trouble and begin providing nitrox oxygen in a moment’s notice.

With it’s small size and simple holster system this tank is out of the way when diving but easily accessible when you need it. It’s 13.4″ tall and has a 2.25″ diameter. Weighing just 2.2lbs when full you can ignore this mini tank until you need it, with silicone mouthpiece.

This black anodized aluminum scuba tank comes with a black holster that attaches easily to your dive gear, a leash to prevent accidental loss, and a refill adapter to fill air off of scuba tanks. This spare air package has all the equipment you need to dive with added safety.



What worked well

What didn’t

  It fills very easy from your main tank

  This allows larger people to have a safe emergency or to give to a diver in trouble

  Feels comfortable to use

  There is a little ‘drag’ when breathing


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Catalina Pony Bottle Tanks


Catalina Pony Bottle Tanks, are an ideal mini scuba tank. They come with Nitrox Ready Up to 40%.

It only weighs 5.2 pounds and has five Sizes to Choose from. This spare air refillable cylinder can be handed off to a fellow diver in trouble and begin providing nitrox oxygen in a moment’s notice.

Most Reliable Redundant Air Source.



What worked well

What didn’t

  Ideal size

  Provides the right amount of needed as back up.

  Fits well


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We hope after reading our review of the mini scuba tank. You found it provided you with some useful details. 

Out of the mini scuba tank, we have reviewed. We found that the Samco 0.5L mini diving tank would be our choice. 

It gave the user the ability to stay underwater for up to 10 minutes. This product was made well & was easy to assemble. Overall we all agreed this was the best mini scuba tank as it was very reliable. With little poor feedback. When compared to others.

Why don’t you click here to check it out for yourself


We would love to hear your thoughts & feedback on masks you have purchased.



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