Is there freshwater tests for iron, magnesium, and calcium?
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 07-01-2012, 09:12 PM   #1
psalm18.2
Wannabe Guru
 
psalm18.2's Avatar
 
PTrader: (7/100%)
Join Date: Oct 2010
Location: NH
Posts: 1,358
Default

Is there freshwater tests for iron, magnesium, and calcium?


My plants are showing signs of iron deficiency and possibly calcium.

I have searched online and can't find freshwater calcium or magnesium tests.

There's a saltwater kit by Red Sea that has all 3 tests. I wrote to them to see if can be used on freshwater.

Anyone have ideas? I understand KH and GH can help make sure calcium and magnesium levels are good enough.
__________________
Multiple planted tanks 1.75g to 55g.
psalm18.2 is online now   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-01-2012, 09:38 PM   #2
In.a.Box
Wannabe Guru
 
PTrader: (9/100%)
Join Date: Dec 2011
Location: New England
Posts: 1,116
Default

There a iron test kit call Fe test by sera.
They also carry a CA test kit.
In.a.Box is offline   Reply With Quote
Old 12-24-2012, 04:08 AM   #3
bdacus
Algae Grower
 
PTrader: (1/100%)
Join Date: Dec 2012
Location: Collierville,TN
Posts: 19
Default Sera Master Kit

Easy to read. Easy to use. I have the master kit and really like it. I have used API as well. The water vials are wider like JBL or Red sea. They have both Fresh and Marine.
__________________
Thank You,

_________________________
Brent Dacus
Collierville,TN
bdacus is offline   Reply With Quote
Old 12-24-2012, 05:55 PM   #4
Diana
Planted Tank Guru
 
PTrader: (0/0%)
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 7,242
Default

I tried the Red Sea Iron test and never got a good result. The test tube turned green, and the color chart included red, blue and grey.
Even when I over dosed and tested soon after, so the iron was well circulated.

What is the GH of your water? This is a combined Ca and Mg test. It does not tell you either one separately. If it is high enough I would assume there is enough of both in the water. If the level is under about 3 German degrees of hardness, though, it would be good to test and see if you need to add one or the other (Ca or Mg). Similarly, if the plants seem deficient in something then knowing the GH and Ca and doing a little math can tell you what the Mg is, also, and help you figure out what to dose. The math is not as simple as subtracting one from the other, look it up.
Diana is online now   Reply With Quote
Old 12-24-2012, 07:00 PM   #5
bobc4d
Algae Grower
 
PTrader: (0/0%)
Join Date: Sep 2012
Location: b/cs texas
Posts: 55
Default

yes there are test for them; total iron, for instance, you need to use digestion method to get a true result. this is not something easily done at home nor is it cheap.
bobc4d is offline   Reply With Quote
Old 12-24-2012, 09:06 PM   #6
plantbrain
Planted Tank Guru
 
plantbrain's Avatar
 
PTrader: (255/100%)
Join Date: Dec 2003
Location: The swamp
Posts: 13,342
Default

Quote:
Originally Posted by psalm18.2 View Post
My plants are showing signs of iron deficiency and possibly calcium.
This is more than luikely, CO2 related.

I've never seen a Ca++ deficient aquatic plant in 20+ years.
The only way one might do that is having plain sand, inert.....and RO water.....and not dose Ca++ at all... for sometime.

It's possible, but exceedingly rare.

If you ever feel something is deficient, add more, a very simple solution to rule out such possibilities. Wait 1-3 weeks etc. If nothing improves, then you know it's something else.
__________________
Regards,
Tom Barr
plantbrain is offline   Reply With Quote
Old 12-25-2012, 01:27 AM   #7
Diana
Planted Tank Guru
 
PTrader: (0/0%)
Join Date: Jan 2010
Location: Contra Costa CA
Posts: 7,242
Default

Quote:
If you ever feel something is deficient, add more, a very simple solution to rule out such possibilities. Wait 1-3 weeks etc. If nothing improves, then you know it's something else.
This is surely the easiest test.
If adding a potential cure does not cure the problem, then the problem is something else.

It sure worked for my tanks.
The problem looked like potassium deficiency, so I dosed K. The problem went away. It comes back when I slack off dosing K.
The plants are the best test.
Diana is online now   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 08:30 PM.


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