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rgfast
02/28/2010, 11:40 AM
what I'm reading on my hanna ph/orp monnitor is 190 to 200 I think this is low so I checked my water change water 35ppt made with ro/di water 190s so I checked my well water which is drawn 600ft well 160s.When I orderred unit also orderred cal. fluid as back for my douts if getting true readings or not dead on the #s. What is best way raise level and is water realy bad:confused:
Randy Holmes-Farley
02/28/2010, 11:54 AM
I do not believe that one should necessarily act to increase ORP. I'm not sure any creatures actually care (or even know) about ORP.

Increased aeration and reduced organics can sometimes increase ORP, as, obviously can things like ozone.

But if the tank looks OK, I wouldn’t do anything about a specific ORP reading.

This has more:

ORP and the Reef Aquarium
http://www.reefkeeping.com/issues/2003-12/rhf/feature/index.php
rgfast
02/28/2010, 11:59 AM
thank you I feel better
Randy Holmes-Farley
02/28/2010, 02:12 PM
:thumbsup:

Happy Reefing. :)
MaLi
02/28/2010, 07:36 PM
Randy, from previous reading I know you are using ozone. Is it worth the effort ? Why do you do it and how ? Thanks a lot.

cheers,
Marian
grassi
02/28/2010, 07:47 PM
Think about orp reading as a relative number. If your tank is looking good, just be afraid if the reading will change up or down in the future. I also clean the probe every week.
Randy Holmes-Farley
03/01/2010, 07:12 AM
Randy, from previous reading I know you are using ozone. Is it worth the effort ? Why do you do it and how ?

I use ozone to reduce the yellowness of the water, and for the potential benefit that it may help degrade certain organic toxins in the water.

The second article below describes how I use it, except that I have expanded the carbon treatment part from 4" PVC to 3 nested Io buckets.

Ozone and the Reef Aquarium, Part 1: Chemistry and Biochemistry
http://reefkeeping.com/issues/2006-03/rhf/index.php

Ozone and the Reef Aquarium, Part 2: Equipment and Safety
http://reefkeeping.com/issues/2006-04/rhf/index.php

Ozone and the Reef Aquarium, Part 3: Changes in a Reef Aquarium upon Initiating Ozone
http://reefkeeping.com/issues/2006-05/rhf/index.php