TDS RO water and remineralization help - The Planted Tank Forum
 4Likes
  • 2 Post By Edward
  • 2 Post By Edward
  • 2 Post By jabrocious
  • 2 Post By jabrocious
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 04-04-2018, 05:17 AM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
Question TDS RO water and remineralization help

So first tank has gone alright so far. A planted 29 gallon tall with currently 8 Red Cherry Shrimp, 3 otto cats, and a orange dwarf crayfish. I started with 15 cherries and lost a ton over time (if your doing the math I lost 7 shrimp.) When I asked for help I got a lot of different answers and one ended up being my nitrate cycle wasn't complete at the time i added shrimp. BUT another concern was raised, that being my TDS.

Right now I'm sitting at 334 PPM, where as my Tap is 105. I was told that my substrate choice was not the best. I have 5 bags of Fluval Stratum and two bags of Ecocomplete. I wasn't liking my PH being close to 6 so I added crushed coral. My Ph has been stable at 7 now but from what I read the crushed coral has a large affect on TDS. But I've also read the TDS could be the buffering substrate activated my te tap water. currently my residence seem okay, no deaths in 4-5 days and everyone is eating. The shrimp are enjoying the new frogbit and swimming around more then ever.

So should the TDS be addressed immediately? I've done a 15 - 20% water change today with tap water. But should I just look into RO water? would that help? Should I ditch the crushed coral? I just don't want a super low ph. I read that Tap mixed with RO works for some people should I try that? Also should I use shrimp minerals and RO water exclusively?

Any input on what i should do? I know every tank and regions water is different Could my Root tabs and fert be raising the TDS to high? Also my calcium is off the charts for my API test is that from the excessive TDS caused my crushed coral? since coral raises calcium?
jabrocious is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 04-04-2018, 12:06 PM
Planted Tank Enthusiast
 
tamsin's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2011
Location: UK
Posts: 921
It's likely to be a combination of coral and ferts - everything dissolved in the water contributes to TDS.

I don't think you need RO though, your tap is already quite low TDS.

Do you know what your tap GH/KH is?

I expect you'll find that just doing small regular water changes will help things level out somewhere inbetween your tap water and current tank water. I'd start with 20% a week and see if your TDS then stays roughly steady at wherever it settles or continues to rise. If it continues to rise then increase the water changes a bit to keep it more stable.

Don't do too big a change in one go as there is a big difference between your tank and the tap. If you want to change a lot of water, you'd be better doing 10% a day for a week (for example) so you allow the occupants to adjust slowly.
tamsin is offline  
post #3 of 13 (permalink) Old 04-04-2018, 03:22 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
Quote:
Originally Posted by tamsin View Post
It's likely to be a combination of coral and ferts - everything dissolved in the water contributes to TDS.

I don't think you need RO though, your tap is already quite low TDS.

Do you know what your tap GH/KH is?

I expect you'll find that just doing small regular water changes will help things level out somewhere inbetween your tap water and current tank water. I'd start with 20% a week and see if your TDS then stays roughly steady at wherever it settles or continues to rise. If it continues to rise then increase the water changes a bit to keep it more stable.

Don't do too big a change in one go as there is a big difference between your tank and the tap. If you want to change a lot of water, you'd be better doing 10% a day for a week (for example) so you allow the occupants to adjust slowly.
Ph 7

Ammonia 0

Nitrite 0

Nitrate 5

Kh 75 ppm

Gh 100 ppm

Copper 0

Calcium high as a kite can't even get good reading
jabrocious is offline  
 
post #4 of 13 (permalink) Old 04-04-2018, 04:20 PM
Wannabe Guru
 
Edward's Avatar
 
PTrader: (0/0%)
Join Date: Apr 2005
Location: at home
Posts: 1,358
Do you use CO2?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Edward is offline  
post #5 of 13 (permalink) Old 04-04-2018, 11:56 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
Quote:
Originally Posted by Edward View Post
Do you use CO2?

nope, just got a heater hang on back filter and a led light. I only use Seachem flourish tabs and liquid fertilizer. Oh and some crushed coral in the filter
jabrocious is offline  
post #6 of 13 (permalink) Old 04-05-2018, 04:16 PM
Wannabe Guru
 
Edward's Avatar
 
PTrader: (0/0%)
Join Date: Apr 2005
Location: at home
Posts: 1,358
Your tap seems to be very good as is. Also, 6 pH is not a problem, in contrary, it is actually better than 7 and coral is making it worse. Your TDS readings should be understood as water change triggers. Higher the TDS difference between tap and aquarium higher the need for water changes.
jabrocious and jabrocious like this.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Edward is offline  
post #7 of 13 (permalink) Old 04-05-2018, 08:38 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
Quote:
Originally Posted by Edward View Post
Your tap seems to be very good as is. Also, 6 pH is not a problem, in contrary, it is actually better than 7 and coral is making it worse. Your TDS readings should be understood as water change triggers. Higher the TDS difference between tap and aquarium higher the need for water changes.
Should i remove the coral now all at once or wait till i do a water change? or do it slowly?
jabrocious is offline  
post #8 of 13 (permalink) Old 04-05-2018, 09:46 PM
Wannabe Guru
 
Edward's Avatar
 
PTrader: (0/0%)
Join Date: Apr 2005
Location: at home
Posts: 1,358
All at once any time.
Still the Eco-incomplete substrate will continue leaching and altering the water chemistry (TDS) and therefor requiring water changes. Luckily, without CO2 the leaching is significantly slower. And, https://www.plantedtank.net/forums/29...ratum-bad.html
jabrocious and jabrocious like this.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Edward is offline  
post #9 of 13 (permalink) Old 04-05-2018, 09:56 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
Quote:
Originally Posted by Edward View Post
All at once any time.
Still the Eco-incomplete substrate will continue leaching and altering the water chemistry (TDS) and therefor requiring water changes. Luckily, without CO2 the leaching is significantly slower. And, https://www.plantedtank.net/forums/29...ratum-bad.html
awesome thank you for the input, I'm doing a 10% water change right now and i pulled out the coral, I'll update what happens in like a week. Curious where the Ph and TDS will land at. Here's hoping it all goes well

Quote:
Originally Posted by Edward View Post
All at once any time.
Still the Eco-incomplete substrate will continue leaching and altering the water chemistry (TDS) and therefor requiring water changes. Luckily, without CO2 the leaching is significantly slower. And, https://www.plantedtank.net/forums/29...ratum-bad.html
Okay should i just keep doing almost daily water changes to lower the TDS? I did the 15ish % water change and TDS only dropped 20. So now it's 320 vs the 348. I'm guessing without the coral leeching it might make the next change drop it more but I don't want to stress the shrimp with all the changing.

Or should I just be patient and stick to my weekly change.
Edward and Edward like this.

Last edited by Darkblade48; 04-06-2018 at 03:17 PM. Reason: Please use the edit function for back to back posts to keep threads cleaner
jabrocious is offline  
post #10 of 13 (permalink) Old 04-06-2018, 12:41 PM
Planted Tank Enthusiast
 
tamsin's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2011
Location: UK
Posts: 921
Your tap water GH/KH should be ok for shrimp and the other fish. So, yes, what you want to do is gradually adjust the water back closer to your tap. I would do a series of smaller changes. You could just swap a couple of jugs of water each day. A small change will make a bigger difference at first as the values are far apart, but as they come closer together you can increase the amount you change at once.
tamsin is offline  
post #11 of 13 (permalink) Old 04-06-2018, 07:55 PM
Planted Tank Guru
 
PTrader: (7/100%)
Join Date: Dec 2011
Location: San Diego, CA
Posts: 2,372
Are you topping off with regular tap water? If you are that's why your TDS keeps going up and up. To keep TDS at your starting constant you have to top off with 0 TDS water from an RO/DI filter. So top off with DI water and water change with regular tap. That will keep the TDS at constant level.
gus6464 is offline  
post #12 of 13 (permalink) Old 04-09-2018, 03:27 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Mar 2018
Location: Metro Detroit Michigan
Posts: 20
just an update since its been a couple days, seemed to work like a charm ditching the coral and doing the tap changes. I switched to closer to a 20% change and my TDS is now 260, and I'm just gonna stick to daily changes till it's where I want it. Also due to my inexperience I had no clue how much Prime affects TDS, I think i was overdosing so I'm using a small baster eye drop thing to measure the ml for EVERYTHING! No more unnecessary byproduct for me!

Thanks again dude hopefully my shrimp are much more happy and will breed soon! I also don't think ill ever buy an Aquatic Arts "breeder" pack since the shrimps are already adults and it gives me no idea if they were dying from water conditions or if it was old age. I mean I want to say the water but Aquatic Arts kinda ticked me off with their big talk about replacing the dead shrimp and then not returning my emails lol. I never even asked for a refund I just asked what their parameters were and they tell me they'll replace the shrimp. Then they ghosted me lol.
Edward and Edward like this.
jabrocious is offline  
post #13 of 13 (permalink) Old 04-09-2018, 04:46 PM
Planted Tank Enthusiast
 
tamsin's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2011
Location: UK
Posts: 921
Glad to hear it If you can, find local shrimp to buy as they'll already be adapted to your local water.
tamsin is offline  
Reply

Tags
fluval stratum, remineralizing, ro water, tap water, tds

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