[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: New and and need help with PH/GH/CO2


For CO2 info, especially reactors etc, I would highly 
recommend the Krib's CO2 page at: 

Also, if you want to buy a pre-made reactor that will 
improve your DIY Yeast performance, I would point you 
toward either the "Plant Guild" or Barr CO2 reactors 
sold by Robert H's AquaBotanic:

The Krib has a lot of pH / Hardness info on the page 
I listed as well.

My advice would be to save your $$ and buy a 
pressurized CO2 system as soon as you can -- with the 
pH / Hardness of your water, Yeast CO2 probably wont 
do much good. But, with pressurized CO2, you could 
bring your pH down to 7.0 and have a near-ideal 30 
mg/L CO2.

Saggitaria and Vals will probably grow with the pH / 
KH of your water, but many plants might have a tough 
time. GH doesn't really seem to matter for most 
plants IME.  The GH of my tap went from 6 in the 
summer, to 10 now -- I think the water company 
switched sources -- and all my plants are doing 
fine.  My KH stayed the same at a value of 5.

If you want to lower your KH/GH, you could do a few 
(1) Invest in an RO Unit
(2) Try Aq Pharm's "Tap Water Purifier" (A DI system)
(3) Dilute the tank water with distilled / RO water 
from the store (only an option if you have $$ and/or a little - <10g - tank) 

If you want more help, I would ask that you post all 
the tank specs to give us a better understanding of 
what you are dealing with. (Tank size, lighting, 
substrate, Macro nutrient levels, fertilization etc)

Hope this helps,



To: Aquatic-Plants at actwin_com 
Subject: New and and need help with PH/GH/CO2 
From: WildPraire at aol_com 
Date: Fri, 25 Jan 2002 12:16:49 EST 


Hello all,

I'm new and am looking for advice on several  basics 
that I don't yet understand. I've had tanks for years, always had 
some live plants but now want to concentrate on the plants as I find 
them so beautiful.

I have a 55 gal tank planted fairly heavily, although the crypts are taking over and I haven't had much luck with the faster growing 
plants.  I have community  fish, mostly cardinals, tetras and some 
algae eating creatures. I went through a tremendous amount of hair 
algae (for about 7 months, lost most all of my faster growing plants 
and lowered the light to help control algae). Then I fought with 
cyanobacteria for several months. I am now algae free will be 
increasing the light again. I'm going to be removing a lot of the 
crypts to make room for other plants, the idea being to get more 
faster growing ones which may help me prevent algae taking over the 
tank.  What is a good source of plant material?

I set up a DIY yeast mixture for CO2 5 days ago. Although its 
bubbling its clear to me that I need a reactor, membrane, diffuser 
or something along that line as I can see I'm losing most all of my 
CO2 that's bubbling up out of the tank.  I'm lost when it comes to 
which device to use to diffuse the CO2 into the tank more 
efficiently. I'd like something that I can use with my DIY yeast 
system, but that would also work if I upgrade to a real CO2 system. 

My water chemistry is a major problem from what I've been reading.  
My pH is 8.5, GH is 9 and KH is 10 (if my test kit is correct). My 
understanding is that these values are too high and I'm not sure 
what to do to correct it.  If I'm understanding the info I've read 
this values make little CO2 available to the plants. This is well 
water I'm using. I'm not really into using chemicals to change the 
water values, is it my only hope?

As you can tell I'm not a scientist, and I know all these questions 
are probably old hat to most of you.  I would really appreciate some 
wisdom from those who can push me in the right direction.
Thank you,
Sue Wild