Quote:
Originally Posted by Tom Barr
Well, do not get too exicted, we are already pushing growth at 10-20X the normal rates.
There's only so much, so fast a plant can metabolically grow before time factors into limiting the rates.
At 30ppm dissoloved CO2, you are near maxmimal rates, so adding this might get another 20% more growth, not 10,000X more.
It takes time for the plant to organize all these components into tisuue.
Lots of very complex parts need assembled.
The plants are quite fast and good at it, but they do have limits.
If you drive some parts too fast and the plant can regulate or down regulate things or upregulate, etc..then you run into trouble.
When you try and maintain high light + high CO2 + non limiting nutrients, things can and do get away from you.
So reduce the ligh and that reduces the speed of growth and the energy added at the root core of plant growth: photosynthesis.
Same with algae.
So less intense growth is easily manged and a very stable way using light.
More than any other single parameter, light tends to be our most easily controlled and stable tool we have.
CO2 is about the most unstable.
So...........
More light= more CO2 related issues and less stablility and resiliency etc.
We do not even have to get to/discuss nutrients to see this issue occurring.
Regards,
Tom Barr
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"When you try and maintain high light + high CO2 + non limiting nutrients, things can and do get away from you."
This statement lays the groundwork for a very good discussion !
We can only strive to create optimal conditions, but at what point have we actually exceeded any reasonable expectation ?
You Tom Barr are a Co2 nag. More Co2 ! Stable Co2 !! Better quality Co2 !!!
Myself I'm more of a Light nag. More light ! Too much light !! Better Light !!!
EI in itself almost always maintains stable nutrition. The only real problems ever encountered can and do occur only when we cross the boudaries of reasonable expectation, or allow hygein to lapse within the system.
I believe it's Flora's Bye line that the only things that happen quickly in this hobby are generally bad. Given the technology available to Aquatic Gardeners today the hobbiest is relegated to a postion somewhere in between Benevolent God, and Ardent Custodian. In the process of pushing the envelope We are all ultimately responsible for the results achieved. Whether people lose sight of rational boundaries, or overlook the finer details I personally believe nutrition might be the "Easiest" aspect to maintain. Some folks just make a chore out of it...
Co2 misting is only a tool or method to tickle or goose photosynthesis within a closed system enviroment. Or perhaps to augment or supplement enrichment when a large system has reached a plateau or been taxed to a breaking point. Grtz, Prof M