CO2 Media Videos
Using CO2 removal media to remove CO2 from the air going into your protein skimmer is one of the most efficient ways to increase pH in your reef aquarium when too much dissolved CO2 is suppressing your tank’s pH. We already have some excellent videos on how to raise pH in a reef tank with an entire episode dedicated to CO2 scrubbers. Back in 2017, we followed a post by Reef2Reef user Velcro who described a recirculating type installation of a CO2 scrubber that results in a much more efficient use of the CO2 removal media compared to the traditional installation. Recirculating BETA vs. Traditional CO2 Scrubbers A standard CO2 scrubber installation on your protein skimmer pulls air from the room around your tank so it is constantly scrubbing new air. The result is often scrubbing way more air than is necessary to achieve your goal of increasing pH in your reef. In a closed off area like a fish room this may be less impactful but in a living
For those of you looking for the growth and metabolic health benefits of maintaining a pH of 8.3, scrubbing CO2 is one of the easiest and most reliable ways to achieve that goal. Presuming you are maintaining alkalinity properly, high carbon dioxide (CO2) in the air surrounding your tank is the #1 cause of low pH. Excess CO2 in the air transfers to the tank via natural gas exchange and creates carbonic acid which lowers the pH of the tank. An air exchanger on your AC or furnace is the best solution but it is expensive if you don’t already have one. Opening a window and/or doors for 24 hours will let the excess CO2 escape also and should be your first step in order to identify that CO2 is indeed your problem. If pH rises after opening the windows for 24 hours, then you can be fairly confident that excess CO2 is suppressing the pH in your aquarium. How to use a CO2 Scrubber Since keeping windows and doors open
Holding a steady pH as close to 8.3 as possible has some significant benefits in a reef aquarium. Specifically for coral growth, health and metabolic processes which is why reef tank owners shoot for this number. A vast majority of low pH problems are either because of low alkalinity or too much carbon dioxide in the air surrounding your tank. By definition, pH is a scale of acidity from 0 to 14. Alkalinity is the capability of water to neutralize acid and carbon dioxide levels have a direct correlation with the amount of carbonic acid in the tank. So the better the ability to neutralize acid and the lower the carbonic acid, the higher the pH we can achieve. . #5 - Maintain alkalinity properly Alkalinity is the number one parameter to monitor and maintain in your reef tank; more important than calcium, magnesium, pH and, in some ways, even salinity. The commonly recommended target of 8.5 dKH is a safe range because it allows for dosing or testing
Today on BRStv, we have another episode of BRS 52 FAQ where we answer all of your frequently asked reefing questions from our popular 52 Weeks of Reefing series. This week we are answering googlereasllysucks question: "Would running a hose outside to fresh air and a CO2 scrubber have the same effect? I already do the hose but still have low pH?" If you have low pH there are some limited options to raise your tank pH directly without affecting other levels, and many of them won’t be able to hit that magical 8.2-8.4pH long term. Usually, low pH is due to excessive CO2 in the ambient air that is very common to find in most homes. There are medias that will absorb the CO2 and remove it from the air passing through, that can hook directly to the air intake of a protein skimmer. CO2 absorbent media does need to be replaced regularly depending on the amount of CO2 it is scrubbing out and the reactors size. Running a hose outside is going to be the best all-around long term solution. S© 2020 Bulk Reef Supply. All Rights Reserved.