Is it okay to use straight Distilled water for CRS? - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 01-08-2014, 06:35 PM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Is it okay to use straight Distilled water for CRS?

Hello all!

I'm trying to keep my TDS low enough for CRS, and I was curious if it is okay to use straight Distilled water for them? I mean without reminirilising it at all?

It would sure make it easier to keep TDS down if I'm able to put 0 tds water in after a water change, rather than 100 TDS water.

Thank you,
Whiskey
Whiskey is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 01-08-2014, 06:51 PM
Wannabe Guru
 
PTrader: (2/100%)
Join Date: Feb 2012
Location: Ontario, Canada
Posts: 1,359
Are you trying to lower the TDS in your tank? It's okay to use 0 TDS for water change and reduce TDS in your tank at the same time, eventually you will want to hold it stable I assume. I would also suggest not to change TDS too much in one water change. I have reduced TDS from 180 to 150 in one water change and it was okay, I can't guarantee you a 30 TDS is always safe though but that's from my own experience. The key is change it slowly.

That said, how high is your current tank TDS that you want to lower it?
randyl is offline  
post #3 of 13 (permalink) Old 01-08-2014, 06:56 PM
Planted Tank Guru
 
xmas_one's Avatar
 
PTrader: (18/100%)
Join Date: Feb 2010
Location: Oregon
Posts: 3,401
No, and no. You need to remineralize with a gh booster up to around 5 dgh.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
xmas_one is offline  
 
post #4 of 13 (permalink) Old 01-08-2014, 07:07 PM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Quote:
Originally Posted by randyl View Post
Are you trying to lower the TDS in your tank? It's okay to use 0 TDS for water change and reduce TDS in your tank at the same time, eventually you will want to hold it stable I assume. I would also suggest not to change TDS too much in one water change. I have reduced TDS from 180 to 150 in one water change and it was okay, I can't guarantee you a 30 TDS is always safe though but that's from my own experience. The key is change it slowly.

That said, how high is your current tank TDS that you want to lower it?
TDS is currently at 230.
This morning it was at 320 ish,.. I've been doing small water changes throughout the day to slowly lower it.

I'm shooting for 150ish, but I'm done for today because I don't want to change too fast, I will lower it more tomorrow.

My issue though, is that I dose K2S04, and KNO3 - my dosing solution is over 9,000 TDS. How can I maintain under 200 TDS, if I'm putting 9,000 TDS water in every day?

I was thinking if I did water changes with 0 TDS water it might help.

But if GH needs to be up than I'll have to keep using Ultimate GH booster to make sure that is at reasonable levels.

Thank you,
Whiskey
Whiskey is offline  
post #5 of 13 (permalink) Old 01-08-2014, 07:23 PM
Wannabe Guru
 
PTrader: (120/100%)
Join Date: Jul 2006
Location: Denver, Colorado
Posts: 1,885
What is the TDS of your remineralized water before adding it to your tank? I use Salty Shrimp GH+ and when I remineralize to 5GH the TDS is around 80-90. If your remineralizer is as clean as Salty Shrimp you should be able to bring your TDS down over time with water changes.

You are adding dosing solution at 9000 TDS but you are probably only adding a few mL's to your tank which is a pretty small amount of the total tank volume.
oblongshrimp is offline  
post #6 of 13 (permalink) Old 01-08-2014, 07:27 PM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Yeah,.. the TDS of the remineralized water is 100ish, so it will definitely lower the TDS over time.

I was just thinking that if I could put 0 TDS water in there it would lower it faster

Whiskey
Whiskey is offline  
post #7 of 13 (permalink) Old 01-08-2014, 07:28 PM
Planted Tank Guru
 
acitydweller's Avatar
 
PTrader: (177/100%)
Join Date: Dec 2011
Location: New York
Posts: 7,691
Distilled and R/O are commonly applied as top off or to dilute particular parameter levels by water change.

It may be more appropriate to state that distilled (and R/O) are safe to use directly in a CRS tank so long as the tank reaches its proper gh/kh at equilibrium and in falling short, that re-mineralization is necessary.

Just be aware that massive shifts in TDS often risk the situation of premature molting in inverts so any changes should ideally be dripped in slowly over a brisk pour.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
"I am Groot", the faithful protector
acitydweller is offline  
post #8 of 13 (permalink) Old 01-08-2014, 08:04 PM
Wannabe Guru
 
PTrader: (2/100%)
Join Date: Feb 2012
Location: Ontario, Canada
Posts: 1,359
Don't be fooled by just TDS though. A lot ppl have their TDS at around 150 that's because GH would most likely be in range for CRS (4-6).

In your case, when your TDS is 150, I would guess your GH will be very low. Not a big issue by itself as I have tanks of CRS ranging from 3 - 7 and I don't see anything obviously different in these tanks (meaning, no death directly caused by the GH difference, higher GH tanks do see better colour though). Thought I should point out the importance of GH too.
randyl is offline  
post #9 of 13 (permalink) Old 01-08-2014, 10:33 PM
Planted Member
 
Aquasapien69's Avatar
 
PTrader: (7/100%)
Join Date: May 2011
Location: St. Louis, MO, USA
Posts: 205
+1 on the GH. Don't just focus on TDS, but focus on your GH. Use the distilled to bring your GH down or for topoffs. Keep an eye on your KH as well. Those are the real numbers we generally keep an eye on and use TDS as a quick reference to those once we know what GH and KH are at a certain solution concentration.
Aquasapien69 is offline  
post #10 of 13 (permalink) Old 01-08-2014, 11:01 PM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Quote:
Originally Posted by Aquasapien69 View Post
+1 on the GH. Don't just focus on TDS, but focus on your GH. Use the distilled to bring your GH down or for topoffs. Keep an eye on your KH as well. Those are the real numbers we generally keep an eye on and use TDS as a quick reference to those once we know what GH and KH are at a certain solution concentration.
As I understand it, KH should be between 0 and 1 for these shrimp, is that correct?

I haven't been buffering that at all, I've just been letting it be at 0.

Whiskey
Whiskey is offline  
post #11 of 13 (permalink) Old 01-09-2014, 01:13 AM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Okay,.. current water specs:
TDS - 200
GH - 5
KH - near 0

Water change water:
TDS - 90
GH - 4
KH Near 0

Topoff water.
TDS - 0
GH - 0
KH - 0

I'm going to keep doing water changes until TDS is less than 180.
I'm going to pull all fast growing plants so I don't have to add as many ferts.

And I'm going to keep an eye on TDS to know when to change the water.

Sound good?
Whiskey
Whiskey is offline  
post #12 of 13 (permalink) Old 01-09-2014, 03:19 PM Thread Starter
Planted Tank Enthusiast
 
Whiskey's Avatar
 
PTrader: (1/100%)
Join Date: Feb 2005
Location: Vista, CA
Posts: 597
Dangit!

Overnight it looks like I lost the last CRS Either I changed things too fast, or he was weak from the high TDS.

Man,.. these things are Tough!!! Well,.. I'll keep the water quality good for the Cherries, and next time I get the chance to drive to LA I'll try again. Hopefully with this knowledge I will be successful next time.

Whiskey
Whiskey is offline  
post #13 of 13 (permalink) Old 01-12-2014, 12:54 AM
Algae Grower
 
PTrader: (0/0%)
Join Date: Oct 2013
Location: São Miguel, Azores, Portugal
Posts: 140
RCS and CRS seem to have different parameters,
The latter are for more soft water and RCS for harder water


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Aganor is offline  
Reply

Tags
None

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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome