Tank With Just Plants - CO2 Rate?

Roan Art

Roan Art

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Oct 7, 2005
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ATM I have all my high light PNG plants in my last 75g. No fishes or anything. The tank is at 3.5wpg.

How high can I run the CO2? At what level does it cease to be beneficial to the plants?

Roan
 
:huh: Is there a limit? IDK?
 
doesn't Barr's report say that 30- 35 ppm is the max uptake?

or is that the max that it's safe for fish - i'll have to go back and check. . .

cheers-Kyle
 
Yeah, good question. I'd like to know, as well.
 
kyle3 said:
doesn't Barr's report say that 30- 35 ppm is the max uptake?

or is that the max that it's safe for fish - i'll have to go back and check. . .

cheers-Kyle
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I read it yesterday, and I am pretty certain that he said that was the max uptake of the plants. I am pretty sure it was in his article on the Estimative Index (the link for which I got from one of your posts RA).
 
Tom Barr in "The Estimative Index of Dosing" said:
Research on three aquatic weeds showed that the plants will reach and carbon fixing maximum at around 30ppm of CO2 no matter what light intensity is used (Van et al 1976)
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Found it.
 
Huh. You sure? Just wanna make sure cause 1976 was a LONG time ago.

FWIW I had that puppy screaming at 366+ ppm yesterday HAHAHAHHAHA

pH was probably lower than 6.0 -- that's as far as the kit reads -- and the KH was at 13 KH.

Heh. Just hadda do it :devil:

You just hadda see the Myriophyllum tuberculatum and the Pogostemon Stellatus. If plants could smile those guys would put a tradiional happy face to shame.

Roan
 
kyle3 said:
wow i totally missed the date on that report! 1976! should i relly be using his theory for fert dosing then?!
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Probably fine, but we wait for RTR or Tom or djlen to pop in and tell us we're dorks :)

I'm gonna snap a pic this eve. You guys have just GOT to see these plants. They've been in the tank for three days and are growing already.

Roan
 
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