rogergolf66
im an addict lol
what did you use to measure co2 in living room
Doing a little study
- Thread starter rogergolf66
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what did you use to measure co2 in living room
To be clear tanks with a lot of photosynthetidc activity and little gas exchange may have chronically high ph particularly during photosynthetic periods as CO2 in the water is depleted in a closed tank with light aeration or surface water exposure to the air. The other possibility for high ph relates to dosing limewater( calcium hydoxide) as the oxide grabs CO2 and produces CO3 carbonate, depleting the CO2.
Ph relates to CO2 .High CO2 = low ph and vice versa.
Alkalinity is a measure of negatively charged ions in the water which can buffer ph swings up or down . Ph is a measure of positively charged H protons which lower ph. CO2 has no effect on alkalinity.
The process is always moving as CO2 from the surrounding air plays in and creates an equilibrium :as it does , the CO2 adds H + and bicarbonate as it hydrolizes to carbonic acid in water: CO2 +H20= CH2O3 . Then almost all of it disassociates to CHO3( bicarbonate) and H+ in salt water : H2CO3 = HCO3 = H+ . The bicarbonate is one unit of alkalinity, ie one negatively charged ion. The H+ adds one unit of acidity . So, the effect of CO2 on alkalinity is zero. but the effect of CO2 additions on ph is to lower it. So you can have high alk and low ph and vice versa
Ph relates to CO2 .High CO2 = low ph and vice versa.
Alkalinity is a measure of negatively charged ions in the water which can buffer ph swings up or down . Ph is a measure of positively charged H protons which lower ph. CO2 has no effect on alkalinity.
The process is always moving as CO2 from the surrounding air plays in and creates an equilibrium :as it does , the CO2 adds H + and bicarbonate as it hydrolizes to carbonic acid in water: CO2 +H20= CH2O3 . Then almost all of it disassociates to CHO3( bicarbonate) and H+ in salt water : H2CO3 = HCO3 = H+ . The bicarbonate is one unit of alkalinity, ie one negatively charged ion. The H+ adds one unit of acidity . So, the effect of CO2 on alkalinity is zero. but the effect of CO2 additions on ph is to lower it. So you can have high alk and low ph and vice versa
deeznutz1
New member
Sorry to take it off track again, but what is the KH follows PH thing? I can't make sense of it. I'm at
ph 8.52
Alk 7.5-8.0
Ca 420
Growth-ok
Colour average
In the calculator, my DKH should be 20 ***? I'm not new to sps, but this kh follows ph thing got me curious
thanks
-dan
ph 8.52
Alk 7.5-8.0
Ca 420
Growth-ok
Colour average
In the calculator, my DKH should be 20 ***? I'm not new to sps, but this kh follows ph thing got me curious
thanks
-dan
deeznutz1
New member
Sorry to take it off track again, but what is the KH follows PH thing? I can't make sense of it. I'm at
ph 8.52
Alk 7.5-8.0
Ca 420
Growth-ok
Colour average
In the calculator, my DKH should be 20 ***? I'm not new to sps, but this kh follows ph thing got me curious
thanks
-dan
ph 8.52
Alk 7.5-8.0
Ca 420
Growth-ok
Colour average
In the calculator, my DKH should be 20 ***? I'm not new to sps, but this kh follows ph thing got me curious
thanks
-dan
It doesn't. Alk doesn't follow ph.
CO2 in the water determines the ph. The equilibrium noted for the calculator refers to the point at which the water is in equilibration with the CO2 level in the athmosphere surrounding the tank. Temperature and athmospheric pressure play a role too but generally the CO2 in the athmosphere is about 390ppm by volume and so it is in natural seawater where the equilibrium is around ph 8.2 and dkh 7. Athmosphetric CO2 varies some seasonally as plants live and die. In a clsoed room salt mist and relative humidity can play a role too. Overall CO2 is believed by some to be increasing the athmosphere and is at the center of global warming discussions.
The ocean's CO2 level is in equilibrium with the athmosphere ;no so in many tanks since these closed systems often don't have enough surface area to interact with the air around them adequately and instantaneously .House air is often higher than fresh air in CO2 too. CO2 is also added to the closed space of a reef tank by organisms respiring.
The opposite can also happen . In a tank with high ph the CO2 is lower than the athmospheric CO2. This can happen when oxide is dosed or when heavy photosynthetic activity uses up CO2 faster than it's coming in bringing the level in the tank down and the ph up.
CO2 in the water determines the ph. The equilibrium noted for the calculator refers to the point at which the water is in equilibration with the CO2 level in the athmosphere surrounding the tank. Temperature and athmospheric pressure play a role too but generally the CO2 in the athmosphere is about 390ppm by volume and so it is in natural seawater where the equilibrium is around ph 8.2 and dkh 7. Athmosphetric CO2 varies some seasonally as plants live and die. In a clsoed room salt mist and relative humidity can play a role too. Overall CO2 is believed by some to be increasing the athmosphere and is at the center of global warming discussions.
The ocean's CO2 level is in equilibrium with the athmosphere ;no so in many tanks since these closed systems often don't have enough surface area to interact with the air around them adequately and instantaneously .House air is often higher than fresh air in CO2 too. CO2 is also added to the closed space of a reef tank by organisms respiring.
The opposite can also happen . In a tank with high ph the CO2 is lower than the athmospheric CO2. This can happen when oxide is dosed or when heavy photosynthetic activity uses up CO2 faster than it's coming in bringing the level in the tank down and the ph up.
rogergolf66
im an addict lol
What about froth and color?
Allmost
New member
Allmost
New member
TIM10 CO2, got it for 100 bucks from Ebay.
8.6-8.9 DKH
8.1-8.3 pH
490 Ca (Was at 560 and am slowly lowering it)
Last I tested Mag was 1300
Don't know PO4 and Nitrate
Growth and color both improving since getting calcium inline, but I would say growth has been slow and color pretty poor for the most part. Once the calcium comes down it will be better.
8.1-8.3 pH
490 Ca (Was at 560 and am slowly lowering it)
Last I tested Mag was 1300
Don't know PO4 and Nitrate
Growth and color both improving since getting calcium inline, but I would say growth has been slow and color pretty poor for the most part. Once the calcium comes down it will be better.
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