I finally got my own CO2 disposable tank 2 days ago. I’ve been eyeing to buy one ever since I started my planted tank, an aquarium with live plants on top of the livestock like fish, shrimp, etc. ┬áDecember of 2013. ┬áCO2 or Carbon Dioxide is essential to aquarium care if you want the plants to grow at a much faster rate. Like most newbies, I started with do-it-yourself (DIY) CO2 generator, but have always looked forward to buying the pressurized CO2 for convenience.

Mine is a 10 gallon tank and the dosage is 1 bubble per second for 8 hours. At this rate, the disposable tank should last around 1 month or so. I turn the tank on whenever I turn on the lights, allowing the plants to synthesize the CO2 in the process we commonly know as photosynthesis. Inside the kit, there’s the diffuser + bubble counter combo.


The diffuser helps the gas dissolve into the water. But a lot of stuff I read on the forums says otherwise and have suggested using a reactor of some sort because diffusers are inefficient for this job. The diffuser, however, creates very fine bubbles which many hobbyists are still skeptical. As a newbie, I’d probably skip thinking about it for now ­čÖé

The reason why it took me this long to buy CO2 tank is because there are other things that I needed to buy first to kick start this project. ┬áFor instance, I need a good substrate (soil) and each kilo costs Php 180.00. The plants themselves varies in prices from 10 pesos to 100 per stem. And I recently bought a few Java Ferns and it cost me Php 250.00. For those who don’t use pressurized CO2, options include getting CO2 ┬áfrom the water column as a result of gas exchange on the surface, liquid CO2 or CO2 tabs.

CO2 is also pretty expensive for starters like me. Mine is the disposable version, so I must buy the kit first which costs Php 2,400.00. Use it for a month or so and buy the refill tank later for Php 520.00. As they say, if you’re really serious about planted tank, pressurized CO2 is the way to go.

I can’t end this review without sharing this rather embarrassing experience. When I first installed the “free” tank into the regulator, its entire contents escaped through the blow hole just below the knob (see image below). In my confusion, I threw it away in a basin filled with water and off the gas, emptying the canister in less than 10 minutes. Later, I was told that the hole is there for a purpose and that I should have tightened it more so that the needle inside the regulator will perfectly fit in the punctured hole. Oh well, experience is indeed the best teacher ­čÖé


The regulator attached to the canister in case you’re interested.


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  1. Are you still happy with the Ista Basic 95g set? Did the battle really last a month at 1 drop per second?

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