Increasing CO2 levels

[abugg]

I have had a CO2 setup (Red Sea CO2 system)for a while now and I am just finally figuring out the proper fertilizers I need to grow my plants successfully.
I have been using the pH-KH-CO2 relationship to calculate my CO2 but from what I can see, my CO2 concentration is quite low and nowhere near the optimal range.

I have: KH 70 ppm ~ 3.92 degrees
pH 7.6

that equals < 5 mg/L CO2 going by the CO2 chart
It says optimal range is between 15 and 25.
I would like to increase my CO2 levels and I feel that i need to lower my pH in order to do so...

so my question, How do I increase the CO2 concentration in my tank?

[AngelMom]

How are the plants doing? If they are all growing nicely, then why worry about it? Especially if you are still working on the optimum fert dosages/timing. ;)

[abugg]

The plants are doing Ok...
They are all covered in a thick amount of algae, even the new leaves have algae creeping onto them.

[crazyred]

Three options might help you here on the CO2....

1. Add another set-up (DIY)

2. Switch to pressurized

3. Supplement with Flourish Excell

That's really the only way to get higher CO2.....pressurized is your best bet, but it has its drawbacks.

[abugg]

I just have another quick question to ask...

In Theory, if my pH was lower, and KH remained the same, would that mean I had and increased amount of CO2 with the current DIY setup I have now?