Hi,
Just seen your thread,
I introduced Oxydatoes for use in marine aquaria to the UK as I was the first to experiment with them in marine set ups around 30 years ago and have written a number of short articles on them. Now IME you would really need 2 Oxydators A's running 6% or you could simply up the peroxide % to 9% but 2 would be better. I even know of people using the "W" pond version in largish marine tanks with good results.
Below is a copy of one such article I did a while back.
The use of Oxydators in Fish Only and Reef Aquaria
By
Les Melling on
Monday, June 1, 2015 at 10:12pm
Oxydator’s: What are they how do they work and what benefits do they bring By Les Melling
I have been using Oxydator’s for many years with great results in my marine tanks. They are powered by Hydrogen peroxide and help to eliminate and keep at bay cyno. An Oxydator will elevate the oxygen of the aquarium water reducing stress and aiding water quality. A number of Seahorse breeders both home and commercial employ them in their systems and have found they help with the survival rate of Seahorse fry.
Oxydator’s have been used in Europe for many years in freshwater aquariums. The peroxide is not administered directly into the tank (and so is far safer) but uses a catalyst to break the hydrogen peroxide down in activated oxygen and water. The process increases redox and helps cleans the aquarium water and keep it gin clear eliminating any yellowing. The effect in many ways is similar to ozone but no electricity is used as the Oxydator is self powering.
I have introduced many reefers in the UK, USA and other countries to the virtues and use of Oxydator’s over the years as little appeared to be known about them.
Due to the Oxydator's oxidizing capacity, your water quality will be improved and many harmful contaminants in your water will be neutralized. Oxydator’s are also an aid to fighting algae problems.
The benefits of adding hydrogen peroxide to an aquarium in cases of acute oxygen deficiency, water putrefaction and water turbidity, spawn fungus, or for enriching the well being of your fish have been known for a long time.
Söchting Oxydator’s breaks the Hydrogen peroxide down into oxygen (O2) and water (H2O).
The advantage: Your aquarium's water quality will be fundamentally improved and problems such as those aforementioned will be greatly hindered.
The Söchting Oxydator breaks down hydrogen peroxide into water and oxygen:2 H2O2 ----------------------------> 2 H2O + O2
My Oxydator is situated in the rear RH side of the tank almost out of view however it could just as easily be put in one of the rear filter chambers.
using the catalyst the peroxide is broken down in the Oxydator and defuses out through a pin hole under the bell housing. Only pure oxygen and water are released nothing else and no peroxide directly enters the aquarium etc..
When in use you might just be able to see some microscopic oxygen bubbles leaving the reactor for a little while, while it settles down. Some of the bubbles are so small that they don't tend to rise but leave the Oxydator and drift horizontally in the water column.
I have never witnessed any adverse effects from these bubbles on any of my corals or fish. The appearance of these fine bubbles happens mainly after first introducing the Oxydator and after each refilling. From time to time larger bubbles are released esp after filling and introduction, again these are of no concern or danger. More info here.
http://www.oxydator.de/english/soechting_oxydators.htmlThis is a quote from Dan Underwood, owner and operations of
seahorsesource.com.
"As mentioned above, the Oxydators work by the catalyst reacting with the peroxide. This releases the gas inside the device and the gas O2 rises. As it expands. Using the recommend size oxydator and the recommended solution, I have not been able to get a peroxide reading in a tank. When I have increased the strength several times that of the recommendation, I did get peroxide readings.
I too have done peroxide dosing on tanks. Even when dosing 5 to 10 mg/L daily, I have found the Oxydator’s worked better. My guess is because they are constantly working in a slow regulated way”
There are 4 Oxydator’s in the range the Mini, D, A and W. Note the “W” version is very large and only recommended for ponds and large systems.
MODEL SPECIFICATIONS FROM THE OXYDATOR WEB SITE.
Mini D AHeight. 6cm 8.5cm 18cmDiameter 4cm 8.5cm 9cmAquarium size up to 30Ltrs 100Ltrs 400LtrsPeroxide lasting Approx 4weeks 2 -4weeks 2 to 8 weeks
Each model comes with its own catalysts one each for the mini and “D” models 2 with the “A” model. More catalysts can be bought if needed but they are everlasting more or less. Up to 12% food grade hydrogen peroxide can be bought via the net in various quantities inc eBay. If buying 12% then you can dilute it using RO water almost doubling the initial quantity which is very cost effective. Finally Just how long the peroxide last is influenced by a number of factors esp temperature and number of catalysts used as in the “A” model which comes with 2.
Hope the above is of some help. Any questions just ask and BTW I have no connection what so ever with any of the companies.