nitrate problem

0 Members and 1 Guest are viewing this topic. 1753 views

  • Posts: 174
  • Liked: 40
  • Thanks Given: 6
  • Received: 6

Hi I did a water change yesterday and my nitrate has gone up so today a got some more ro water to do another water change and before I do the water change I have just tested the RO water and the nitrate is high. Why is this happening?
Both waters are from different supplers.
TDS was 026 on first batch and 019 on this batch
Silinity of first batch was 1.025 the same as my tank and I haven't added salt yet to today's water.
I am using a RED SEA marine care test kit
The first picture is today's RO water and the second is my aquarium 24 hours after water change.
???????????????????
???????????????????
Last Edit: May 27, 2015 6:20:57 pm by jordanweasel

T-Bone Tyrone

  • Posts: 3,646
  • Liked: 600
  • Thanks Given: 520
  • Received: 297
  • I wonder where this shows up?!
  • Location: Ammanford

Reply #1

I don't think you can use marine test kits to test RO, does it say you can on the box?
As for the TDS i won't use RODI if it isn't zero TDS, some will use if it's 3 TDS but no higher, it's the TDS thar will push up the nitrates which then feeds algea etc so you'll spwnd more on media to combat nitrates and phosphates, so (assuming your water is from an LFS) are they just lazy or do they keep it there to save money on RO fliters and at the same time get you to buy more media, I'm guessing its the first option.
I should really sort this out!!

HK_Fuey

  • Graeme
  • Administrator
  • Posts: 6,423
  • Liked: 1854
  • Thanks Given: 488
  • Received: 1552
  • Location: Newcastle
  • Tank Thread: https://reefbase.co.uk/members'-tanks-6/graeme's-6x2x2-840l/

Reply #2

Agreed.  Can't test Nitrates in RO.  You can mix salt in first, then test it though.

It's a bloody cheek to sell RO that's anything but 0ppm!
Have we helped you? Want to help the site keep on running? Donate to the running of ReefBase

Tags:


Related Topics

2 Replies
2089 Views
Last post Jan 7, 2015 12:14:49 pm
by Carol
67 Replies
9369 Views
Last post May 5, 2015 10:31:35 pm
by HK_Fuey
15 Replies
4332 Views
Last post Feb 28, 2015 2:47:41 pm
by Mike
9 Replies
3203 Views
Last post Apr 29, 2015 5:33:56 pm
by Jase
1 Replies
1466 Views
Last post Jul 17, 2016 10:17:39 pm
by Marty


Donate towards the running of ReefBase

Donate £1.00 Donate £2.50 Donate £5.00 Donate £10.00 Donate £20.00 Donate another value