Super-Accurate Water Testing Methods - Page 2
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 04-08-2003, 08:50 PM   #16
geekgirl
Planted Member
 
geekgirl's Avatar
 
PTrader: (3/100%)
Join Date: Feb 2003
Location: Aloha, OR
Posts: 269
Default

ROTFLMAO! Where's the nerdy emoticon when you need one?

Stacey
geekgirl is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-09-2003, 02:15 AM   #17
Rex Grigg
Planted Tank Guru
 
Rex Grigg's Avatar
 
PTrader: (65/100%)
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
Send a message via ICQ to Rex Grigg Send a message via AIM to Rex Grigg
Default

I was not being flip in my answer. But when testing kH using a hobbyist test kit worrying about a 5% difference in the volume of water is worrying way too much. First off one has to consider that the test regent is not accurately measured. Not all drops are going to be the same size. Also each drop is worth just about 17 ppm. If the water changes color after say three drops where does that put you?? Somewhere between 2 and 3 degrees of hardness. If you want to get obsessive about it you would increase the sample size to around 50 ml so each drop would only be .1 degree.
Rex Grigg is offline   Reply With Quote Quick reply to this message
Old 04-09-2003, 02:39 AM   #18
SNPiccolo5
Planted Tank Enthusiast
 
SNPiccolo5's Avatar
 
PTrader: (0/0%)
Join Date: Oct 2002
Location: Minneapolis, MN
Posts: 859
Default

When I test KH I just do 15 drops, shake it (swirl it around like Rex) and then just do one, swirl, one, etc... I know my KH isn't like a roller-coaster ride and it is very rarely lower than 15 dKH, usually around 16-17...

-Tim
__________________
Tank in transition! 55 gallons, hard water.
SNPiccolo5 is offline   Reply With Quote Quick reply to this message
Old 04-10-2003, 03:59 AM   #19
STAT 007
Planted Member
 
STAT 007's Avatar
 
PTrader: (0/0%)
Join Date: Feb 2003
Location: College Station, TX
Posts: 241
Send a message via AIM to STAT 007
Default

We have a topic going about this same thing over on another message board I belong to. One of the guys is in Australia and he put up some pictures and descriptions of a test kit they have over there that looks a lot more accurate in the color-judging area, yet still appears to be quick and easy. Maybe somebody knows how to get them here...?

http://www.fishinthe.net/html/forum/...?p=12316#12316

Also, does anybody have experience with Seachem test kits? They look a lot like the LaMottes.
__________________
Sincerely,
STAT 007
Fightin' Texas Aggie Class of 2004

37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.
STAT 007 is offline   Reply With Quote Quick reply to this message
Old 04-10-2003, 04:24 AM   #20
Rex Grigg
Planted Tank Guru
 
Rex Grigg's Avatar
 
PTrader: (65/100%)
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
Send a message via ICQ to Rex Grigg Send a message via AIM to Rex Grigg
Default

Well if you want to be really accurate LaMotte sells a electronic device that will give you great results. It's called the SMART Colorimeter. It runs in the neighborhood of $900. But it gives very accurate results. And a company called YSI also makes a Photometer that gives good results. It's only $985, but if you want the deluxe kit with printer it will run you $2550.
Rex Grigg is offline   Reply With Quote Quick reply to this message
Old 04-10-2003, 07:12 AM   #21
STAT 007
Planted Member
 
STAT 007's Avatar
 
PTrader: (0/0%)
Join Date: Feb 2003
Location: College Station, TX
Posts: 241
Send a message via AIM to STAT 007
Default

Pretty reasonable prices there, Rex. I think I'll look into those... :roll:

For everyone else who's interested in water chemistry, I was going through my bookmarks looking for disease guides when I accidentally stumbled upon this page that talks about exactly what we're talking about here. Towards the bottom it talks a lot about the potential inaccuracy of electronic testers...

http://www.animalnetwork.com/aquafish/reference/af1.asp
__________________
Sincerely,
STAT 007
Fightin' Texas Aggie Class of 2004

37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.
STAT 007 is offline   Reply With Quote Quick reply to this message
Old 04-10-2003, 09:12 AM   #22
madpiano
Algae Grower
 
PTrader: (0/0%)
Join Date: Feb 2003
Location: London, UK
Posts: 45
Default

After reading this article I think I may just give up testing my water.... :shock:
I allways wondered why my Tap Water was reading so high in Nitrates. It's propably the Chlorine in the water which is reacting and I was buying RO Water for no reason....


Never mind. I certainly will not spend 1000s of dosh to buy LaMotte or Electronic test kits...
madpiano is offline   Reply With Quote Quick reply to this message
Old 04-11-2003, 05:28 AM   #23
doooog
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2003
Location: Lafayette, IN
Posts: 61
Send a message via AIM to doooog
Default

What you need to do about the color determination... get a spectrometer, and run your resultant samples through it, find out what your absorbancy is and compare to the charts or whatever. Probkem is, those deals are PRICEY :-p

~Doug
__________________
Gun control is hitting what your aiming for...
doooog is offline   Reply With Quote Quick reply to this message
Old 04-12-2003, 08:55 AM   #24
STAT 007
Planted Member
 
STAT 007's Avatar
 
PTrader: (0/0%)
Join Date: Feb 2003
Location: College Station, TX
Posts: 241
Send a message via AIM to STAT 007
Default

Quote:
Originally Posted by doooog
What you need to do about the color determination... get a spectrometer, and run your resultant samples through it, find out what your absorbancy is and compare to the charts or whatever.
Oh God, Doug, you're right! I'd probably use a UV-Vis Spectrometer hooked up to a laptop computer so I could save all the data and plot it with Excel or something. :idea:
__________________
Sincerely,
STAT 007
Fightin' Texas Aggie Class of 2004

37 gallon AGA Black Seal, Emperor 400, Ebo Jager 200 W, 100% Flourite Substrate, 2x55 Watt AH Supply PC Lighting (5300K & 6400K) @ ~3.4 WPG, High-Pressure CO2.
STAT 007 is offline   Reply With Quote Quick reply to this message
Old 04-12-2003, 01:35 PM   #25
doooog
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2003
Location: Lafayette, IN
Posts: 61
Send a message via AIM to doooog
Default

i would :p but that's just because i have no life and lead a boring exhistance.
__________________
Gun control is hitting what your aiming for...
doooog is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
fish deaths and ich problems???? cvarcher Fish 18 05-18-2007 02:17 PM
ultrasonic foggers? Anonymous Riparium/Terrarium/Vivarium 44 06-08-2004 08:20 AM
The Potential Importance of Tank Depth on Light Attenuation Splash Lighting 25 03-26-2004 08:41 PM
pH drop help! NFish Fertilizers and Water Parameters 4 12-11-2003 04:19 AM
Need some advice Zaphod_Beeblebrox General Planted Tank Discussion 8 11-05-2003 07:11 PM


All times are GMT. The time now is 04:23 PM.


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