Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - Planted Tanks
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 04-23-2007, 01:10 AM   #1
Aquarium Advice Addict
 
Join Date: Mar 2005
Location: Aberdeen, WA
Posts: 1,864
Alternate source for K

I was wondering if there is alternative source for K. I know about fleet enema for PO4, stump remover for KNO3 and I even have a source for Calcium chloride from a hot tub store.

Is there any alternative source for K as in K2SO4 or maybe KCL that can be purchased at a hardware or other possible place? I know i can order it from Gregs but I have no need because everything else will last me a long time except for the K2SO4 and shipping would make it unreasonable. Should have ordered 4 pounds when I made my first order.
__________________

__________________
fish_4_all is offline   Reply With Quote
Old 04-23-2007, 01:45 AM   #2
Aquarium Advice FINatic
 
Join Date: Feb 2004
Location: Utah, USA
Posts: 748
KCl used in water softeners is probably your best bet. But the Cl might cause problems - it is good to avoid Cl if you can. Some people say that they get enough K from the KH2PO4 and KNO3...

It is very nice to find a local group of hobbiests. You can split shipping on plants and ferts etc etc.
__________________

__________________
hashbaz is offline   Reply With Quote
Old 04-23-2007, 07:54 AM   #3
Aquarium Advice Freak
 
Join Date: Apr 2005
Location: Memphis,Tn US
Posts: 447
Look for sulfate of potash through garden supply retailers.
__________________
Hoovercat is offline   Reply With Quote
Old 04-23-2007, 10:16 AM   #4
Moderator Emeritus
 
Purrbox's Avatar
 
Join Date: Jun 2005
Location: Iowa USA
Posts: 5,860
The NoSalt available at your local grocery store is KCl and commonly recommended for dosing K.
Purrbox is offline   Reply With Quote
Old 04-23-2007, 11:42 AM   #5
Aquarium Advice FINatic
 
Join Date: Jun 2006
Location: Appleton, WI
Posts: 578
I use NoSalt, and it works fine for my plants!
__________________
75g FW Planted Community; 55g African Cichlid
29g Biocube SW Reef;12g AP Mantis Shrimp/Brittle Star
2 Cats, 2 Dogs, 5 Turtles
MSU Fan is offline   Reply With Quote
Old 04-23-2007, 03:49 PM   #6
Aquarium Advice Addict
 
Join Date: Mar 2005
Location: Aberdeen, WA
Posts: 1,864
Well duh, I knew there was something. Now if it is only cheaper than ordering it in bulk. I know, I use a lot but my plants love it, 1/4 tsp every other day.

Thanks for the replies everyone!

I guess it isn't bad. 1/3 tsp to get my target in my 10 gallon tanks. Should last a long time even only getting 11 oz. from the local store.

Thanks again

Well I found a source for really cheap! My local Sears carries KCl for use in water softeners, 40 lb bags for $9.99. Now I know I will never run out if I go this way. At least it is enough that I can use it to fertilize my lawn plants too.
__________________
fish_4_all is offline   Reply With Quote
Old 04-23-2007, 05:08 PM   #7
Aquarium Advice Addict
 
Join Date: Mar 2005
Location: Northern California
Posts: 1,114
Cl = chloride, is not the same as Chlorine. The chloride should not be an issue in dosing.
__________________
Zezmo is offline   Reply With Quote
Old 04-23-2007, 07:11 PM   #8
Aquarium Advice Freak
 
Join Date: Apr 2005
Location: Memphis,Tn US
Posts: 447
Sulfate of potash is K2SO4 though. The same thing GW sells.

On the stump remover, I've found the Bonide brand Ace hardware sells is powdery like GW's. The Grant's that is usually mentioned is "pelletised" so it needs ground back to powder or dissolved in water as fish see it as food.
__________________
Hoovercat is offline   Reply With Quote
Old 04-23-2007, 08:07 PM   #9
Aquarium Advice Addict
 
Join Date: Mar 2005
Location: Aberdeen, WA
Posts: 1,864
Well my LFS which is a lawn and garden sells Potash. I think it is 60% K2O so I will have to see if they sell sulfate of Potash but I doubt it. Lots of options which is good so I can decide when I run out in about 3 weeks.
__________________
fish_4_all is offline   Reply With Quote
Old 04-23-2007, 08:12 PM   #10
Aquarium Advice Freak
 
Join Date: Apr 2005
Location: Memphis,Tn US
Posts: 447
http://cgi.ebay.com/Sulfate-of-Potas...QQcmdZViewItem


My only question is does anyone know gardening ferts well enough to say decisively if this is pure K2SO4? Reasoning says yes because it delivers 50% by weight of K. The remaing weight would be Sulphur and Oxygen ions?
__________________
Hoovercat is offline   Reply With Quote
Old 04-24-2007, 08:14 PM   #11
AA Team Emeritus
 
jsoong's Avatar


 
Join Date: Aug 2003
Location: Edmonton, Canada
Posts: 4,222
Agricultural grade is never 100% pure, there is prob some trace contaminant.

FYI, atomic weight of K = 19, O = 8, S = 16. So K2SO4 would have 44% elemental K. But since NPK labeling expresses K as K2O, I think the NPK label of 100% K2SO4 should read close to 0-0-54. So the 0-0-50 labeling is actually short, indicating some filler or contaminant (or maybe they are jsut rounding it off).
__________________
80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
jsoong is offline   Reply With Quote
Old 04-24-2007, 09:23 PM   #12
Aquarium Advice Freak
 
Join Date: Apr 2005
Location: Memphis,Tn US
Posts: 447
Quote:
SULFATE OF POTASH 0- 0- 50
CONTAINS: Fertilizer grade Sulfate of Potash (Potassium Sulfate) Not for spray application. USE ON: Most Vegetables, Flowers, Shrubs, and Lawns. FOR Use in potassium low soils. Helps plants form healthier and stronger roots, stems, and tubers.RATE: 1/2 lb. per 100 sq. ft. APPLICATION: Spread over treatment area and water in.
PACKED: 10 x 5 lb. bag - #12255
Only description on http://www.southernag.com/fertilizers-l&g.htm the mfg's website suggests it is pure K2SO4. I may buy it next time I need ferts and give it a try.
__________________

__________________
Hoovercat is offline   Reply With Quote
Reply

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Alternate To tap Water thething84 Freshwater & Brackish - General Discussion 14 02-24-2009 08:08 PM
Alternate foods: sudz Freshwater & Brackish - General Discussion 7 11-27-2005 12:54 AM
Alternate live foods fish_4_all Freshwater & Brackish - General Discussion 6 09-28-2005 11:41 AM
Alternate use for UGF / RUGF PsiPro Freshwater & Brackish - Planted Tanks 8 09-21-2005 08:28 AM
alternate bio-balls yago Freshwater & Brackish - General Discussion 3 03-07-2005 05:36 PM







» Photo Contest Winners







All times are GMT -4. The time now is 09:37 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.