- Color Changing CO2 Absorbent Media - Bulk Reef Supply
Raise your Reef Tanks pH by controlling Carbon Dioxide!
Bulk Reef Supply Color Changing CO2 Absorbent Media (Soda Lime) is the perfect solution if your aquarium has a low pH but proper alkalinity levels. It is most commonly used by connecting a carbon dioxide scrubber to your protein skimmer's air intake and can produce substantial lifts. We package the media in Mylar bags and then seal them to preserve the hydration of the media, leading to longer service life and the ability to absorb more CO2 than others on the market. We suggest purchasing single cartridge refills, but if you have higher carbon dioxide levels in your home or business the bulk packaged media is going to be more economical.
- White to purple color change indicates depletion.
- Minimal dust levels due to the high surface area and graded particle size.
- Reliable control of indicator dye concentration.
- Resistance to dry gas desiccation minimizes the risk of CO gas formation.
- Doesn't contain potassium hydroxide.
- Packaged in Mylar bags to preserve the hydration state.
Two Sizes Available:
- 1.2 lbs - 1 Single Cartridge Refill (approx 800mL)
- 7.5 lbs - 7 Single Cartridge Refills (approx 5600mL)
7.5 pound bulk media comes in a resealable mylar package
BRS Carbon Dioxide Absorption Media is made of calcium hydroxide (Ca(OH)2), water, and a small amount of sodium hydroxide (NaOH) in a precise mixture that will efficiently remove CO2 from the air in a semi-closed system. The addition of ethyl violet dye is added to the particles as a color indicator to show when the media is nearing exhaustion, making maintenance as easy as looking at the canister containing the media periodically. The irregular shaped granules add to the available surface area, allowing more air to media contact time, while the granules also fill any voids and help minimize channeling through the cartridge and may not last as long as spherical media, but is much more effective.
Instructions for use
1) Fill your reactors refillable cartridge with BRS CO2 Absorbent Media
2) Add one teaspoon of water to the bottom of the filter canister housing (not the cartridge). Do not get the soda lime wet.
3) Connect the output of the reactor to the intake of your skimmer.
4) Keep an eye on your aquariums pH and the color of the media and replace the media after it has turned purple or the pH is starting to drop*.
*It is essential to replace the media after it has exhausted. If exhausted and left to stand CO2 absorbent media will revert back to a white color, and may appear fresh but is actually not usable anymore. BRS CO2 absorbent media cannot be regenerated and should never be re-used.
How Long Does It Last?
Since every aquarium and the environment around it is different, the amount of media used can vary greatly from one home to another. In most cases, BRS CO2 Absorbent Media will last up to two weeks per single 10" cartridge, but depending on the amount of CO2 present in the air around your tank, the lifespan of the media will vary. Keeping the carbon dioxide levels in your home lower will help increase the lifespan of the media, which can be done by opening windows and using screen doors allowing fresh air inside your home. Another great option is live plans inside the house which will help minimize CO2 levels as well.
Did not bring PH up Past 7.9 By John on 3/25/2020John wouldn't recommend this product to a friendNot happy with this will try CO2 subber for diving
Back to two little fishies CDX... By Sean on 2/12/2020Sean wouldn't recommend this product to a friendI bought this as an alternative to the two little fishies media, which I had used before with good results but costs more. This doesn't work nearly as well or for as long. PH was being kept around 8.2 with two little fishies, in a very CO2 rich home, but with this it's staying below 8 without the media being exhausted. I'll be going back to either two little fishies CDX or buying bulk from a vet brand.
Works but not up to BRS brand standard By KYLE on 2/11/2020KYLE wouldn't recommend this product to a friendThis product does work, it raises my PH by about .3. However for me it lasts about 3 days where “the other” CO2 media give me a .4 ph increase and last over 10 days. If you do the price break down using the largest case pack of each brand to get a cost to refill the cartridge. Then calculate how much it cost you per day to use the media. The other brand is actually more effective and cheaper. However this product does do what it’s intended to do....
does not work... By Ricardo on 12/29/2019Ricardo wouldn't recommend this product to a friendreturn to previous product
BRS, Read the reviews and bring back old pellets By Barrett on 12/9/2019Barrett wouldn't recommend this product to a friendMedia last no more than half of what the old stuff used to and doesn't work as effectively. Period.
Works as described! By Charles on 9/29/2019Charles would recommend this product to a friendI was optimistic about the product at first but it did help. I started at 7.8 and using the product 8.3.
**WARNING** TANK CRASH By Wade on 9/10/2019Wade would recommend this product to a friendCo2 scrubbers do work! I have two. One on both of my tanks. There seems to be a lot of complaints on the exhaustion rates of the media. That's for you to decide. However, I'm here to warn of using what seems to be a popular hookup method of running the air intake off of the skimmer collection cup. This does keep the media in contact with moist air and recirculate low co2 air but beware, if your collection cup overflows and the scrubber begins to pull in water your in trouble. The media reacts similiar to kalkwaser and can decimate a tank. I have learned this the hard way. If you plan to run this type of setup, you ABSOLUTLEY MUST, have some fail safes in place. I now run a float valve via apex break out box on skimmer lid. If the collection cup overflows, the float valve kills the skimmer before the co2 scrubber can overflow. Additionally, running a ph probe at a location that can catch drastic ph jumps and kill return pumps is advisable as well. Great product, but use wisely.
Lasts about 1/2 as long as the previous media that BRS sold By Richard on 8/15/2019Richard wouldn't recommend this product to a friendLast about 1/2 as long as the previous media that BRS sold. Wish that they would go back to the previous product.
Bad batch? By Mark on 8/13/2019Mark wouldn't recommend this product to a friendFirst couple bags i bought worked great, ph would climb above 8.2. The most recent purchase doesn't change the ph at all. At first i thought it was the tank so i moved it to my other tank with the same lack of results.
Uneven wear. By Chris on 8/8/2019Chris wouldn't recommend this product to a friendThis new formula does not seem to deplete as evenly as the small sphere type. Because the pieces are not uniform I have some of the media not changing color on one side as fast as the other. Most likely to that side have more smaller particles blocking more air.
This is after my first fill of the new type so we will see if it happens on the next fill.
a few things By Timothy on 8/2/2019Timothy would recommend this product to a friendbeen running a co2 scrubber for a few weeks. a few ups and downs. but the downs were my fault. My first order was purchased on a friday and expected day to receive the product is always on a thursday. which is not correct. I always receive it on a mondays or early tuesday morning.
the product works like it should but doesn't last as long as I thought. i'm on my last bit of co2 media. that hasn't caked up yet. but I am not pulling air from the room. the skimmer is hooked up to the co2 scrubber than runs through the scrubber and back out to the air intake of the skimmer. I t raises the ph drastically the first 24 hours than after that it struggles to get to the proper ph after that. the last 2 nights it has hit 7.9 ph as a high. could of been higher I think but the local power company turned off the power to the area I live in to fix a blown generator. so I truely don't know if it will hit 8.0 ph wise. so far yes i'm happy with the results. but still in the early phases on how the media will last when recyling the air from the skimmer to scrubber and back to the skimmer air intake. time will tell.
9+ Weeks By Jared on 7/26/2019Jared would recommend this product to a friendOn July 2nd I ordered a jumbo reactor and a single "smaller" cartridge refill just to test the unit and the recirculating method BRS showed on their video. I've been hesitant to use CO2 scrubbing media because of the cost of media and how quickly it gets consumed. The recirculating method is perfect. I'm positive I would have burned a small refill in the 3 weeks its been on my tank but its only 1/3 to 1/4 used up so far. Although the blue/purple dye is hard to see, if I shine my cell phone light at it, I can see it well enough. However, you should be monitoring increased pH not the color of the media. My pH has always been 7.8-8.1 throughout the day. Now, it stays in the 8.0-8.4 range. I expect a single cartridge bag to last 9+ weeks, on my system, with the recirculating method.
1-2 Stars if not using recirculating modification (due to cost of media refill)
5 Stars when using the mod
I'm using this in a TLF 150 Reactor and the instructions say to add 1 tsp of water but to not get the soda lime wet. In the past I have just skipped adding the water. What is the risk of getting the soda lime dust wet?
The idea behind the water is to create a humid environment for the media, it works much better. However if the media gets wet it can disintegrate and not work properly and even clog.