potassium carbonate question
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > Fertilizers and Water Parameters


Reply
 
Thread Tools Display Modes
Old 11-17-2012, 10:15 PM   #1
toddziegler
Algae Grower
 
PTrader: (6/100%)
Join Date: Aug 2011
Location: arlington, tx usa
Posts: 79
Default

potassium carbonate question


Does anyone have any advice for dosing pottasium carbonate for kh?
__________________
Thanks Todd Ziegler
Always question those who claim to have the truth!
toddziegler is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-17-2012, 10:31 PM   #2
wkndracer
Planted Tank Guru
 
wkndracer's Avatar
 
PTrader: (68/100%)
Join Date: Mar 2009
Location: Citrus County,Florida
Posts: 6,180
Default

If you have a gram scale measure doses and mix into a 5g bucket then test results to establish adjustment values. (what I did)

W/O a scale do leveled mixing spoons 1/2 & 1tsp but realize that compaction and moisture effect the values slightly more than the scale but it's still minor.
__________________
The Fraternity of Dirt
If at first you don't succeed,,, keep kicking it
RubberSideDownOnTheLanding,
2-75g planted, 5-55g planted, 5-20g planted, 110g w/30g sump, 8-10g, Refugium, doghouse/newbie
2012 update adding table top pleco pans & a 90g (Nutz)
wkndracer is offline   Reply With Quote
Old 11-17-2012, 11:57 PM   #3
Gold Finger
Planted Tank Enthusiast
 
Gold Finger's Avatar
 
PTrader: (0/0%)
Join Date: Oct 2011
Location: Wpg. MB Canada
Posts: 819
Default

Also, I believe potassium carbonate (K2CO3) adds ~33mg/l K+ along with each 1 degree of hardness added by the CO3 just like K2SO4 does. It works well but you have to understand and want the K+ ratio. lots of extra K seems fine, but plants don't need KH so it's just a pH buffer issue. If you have two or three degrees in your tap I would not bother raising it. Over four degrees can limit some plants. Otherwise K2SO3 is supposed to be a good way to raise KH.
__________________
Ver. 1.0 80 gallon dirt goldfish tank (defunct)

Ver. 2.0 bare bottom same tank another approach (defunct)

Ver. 3.0 Pool filter sand same tank now

Farming Algae

Goldfish are among the worst fish for beginners.
Gold Finger is offline   Reply With Quote
Old 11-18-2012, 01:26 AM   #4
KH2PO4
Planted Member
 
PTrader: (0/0%)
Join Date: Jul 2009
Location: N/A
Posts: 297
Default

From http://www.theplantedtank.co.uk/RO.htm
1.2g K2CO3 in 25 litres of water = 2 dKH

By adding K2CO3 to reach 1 dKH, you also get about 13 PPM of K.
KH2PO4 is offline   Reply With Quote
Old 11-18-2012, 09:32 PM   #5
chibikaie
Planted Tank Enthusiast
 
PTrader: (6/100%)
Join Date: Aug 2012
Location: Connecticut
Posts: 561
Default

Thank you for the link! I've been wondering if I could use potassium bicarbonate in a similar manner, and that answers my question neatly.
chibikaie is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 03:27 AM.


Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012