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NYOS Calcium Reefer - High Precision Test for Calcium (CA) CALCIUM REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is difficult due to numerous interfering ions. Therefore, test kits considering the specific characteristics of seawater are needed to analyse the water precisely. NYOS® REEFER test kits offer the customer two significant benefits: Highly precise analyses for seawater conditions. Furthermore, they offer a highly attractive price-performance ration and make test kits in laboratory quality affordable for the standard hobby user. Additional characteristics of our REEFER test kits: calibrated dropper made by a German manufacturer ensures uniform drops during all repeat tests reagents are made in Germany in accordance with EN ISO 9001 reagents are analysed according to AAS and NIST standards strict batch and quality control easy to use with intuitive pictogram instructions Made in Germany NYOS® REEFER test kits allows you to achieve precise and most importantly reproducible (i.e. in repeat measurements identical) measuring results. High Sensitivity Seawater Calcium Test Kit easy conversion factor accurately to 5mg/l precise dosing tip precise colour change separate indicator and titration solution Technical Details Number of Tests: 50 NYOS Carbonate Hardness Reefer - High Precision Test for Carbonate Hardness (KH) CARBONATE HARDNESS REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is difficult due to numerous interfering ions. Therefore, test kits considering the specific characteristics of seawater are needed to analyse the water precisely. NYOS® REEFER test kits offer the customer two significant benefits: Highly precise analyses for seawater conditions. Furthermore, they offer a highly attractive price-performance ration and make test kits in laboratory quality affordable for the standard hobby user. Additional characteristics of our REEFER test kits: calibrated dropper made by a German manufacturer ensures uniform drops during all repeat tests reagents are made in Germany in accordance with EN ISO 9001 reagents are analysed according to AAS and NIST standards strict batch and quality control easy to use with intuitive pictogram instructions Made in Germany NYOS® REEFER test kits allows you to achieve precise and most importantly reproducible (i.e. in repeat measurements identical) measuring results. High Sensitivity Seawater Carbonate Hardness Test Kit easy usable drop test stable titration reagent precise colour change separate indicator and titration solution Technical Details Number of Tests: 50 NYOS Magnesium Reefer - High Precision Test for Magnesium(Mg) MAGNESIUM REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is difficult due to numerous interfering ions. Therefore, test kits considering the specific characteristics of seawater are needed to analyse the water precisely. NYOS® REEFER test kits offer the customer two significant benefits: Highly precise analyses for seawater conditions. Furthermore, they offer a highly attractive price-performance ration and make test kits in laboratory quality affordable for the standard hobby user. Additional characteristics of our REEFER test kits: calibrated dropper made by a German manufacturer ensures uniform drops during all repeat tests reagents are made in Germany in accordance with EN ISO 9001 reagents are analysed according to AAS and NIST standards strict batch and quality control easy to use with intuitive pictogram instructions Made in Germany NYOS® REEFER test kits allows you to achieve precise and most importantly reproducible (i.e. in repeat measurements identical) measuring results. High Sensitivity Seawater Magnesium Test Kit easy conversion factor accurately to 15mg/l precise dosing tip precise colour change separate indicator and titration solution Technical Details Number of Tests: 50 NYOS Nitrate Reefer - High Precision Test for Nitrate (NO3) NITRATE REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is difficult due to numerous interfering ions. Therefore, test kits considering the specific characteristics of seawater are needed to analyse the water precisely. NYOS® REEFER test kits offer the customer two significant benefits: Highly precise analyses for seawater conditions. Furthermore, they offer a highly attractive price-performance ration and make test kits in laboratory quality affordable for the standard hobby user. Additional characteristics of our REEFER test kits: calibrated dropper made by a German manufacturer ensures uniform drops during all repeat tests reagents are made in Germany in accordance with EN ISO 9001 reagents are analysed according to AAS and NIST standards strict batch and quality control easy to use with intuitive pictogram instructions Made in Germany NYOS® REEFER test kits allows you to achieve precise and most importantly reproducible (i.e. in repeat measurements identical) measuring results. High Sensitivity Seawater Nitrate Test Kit highly sensitive reagents professionally calibrated colour chart differentiated colour gradations precise sliding comparator sample tubes made of glass Technical Details Number of Tests: 40 Measurement Range: 1 – 160 mg/l NO3 NYOS Phosphate Reefer - High Precision Test for Phosphate (PO4) PHOSPHATE REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However, monitoring relevant parameters in seawater is difficult due to numerous interfering ions. Therefore, test kits considering the specific characteristics of seawater are needed to analyse the water precisely. NYOS® REEFER test kits offer the customer two significant benefits: Highly precise analyses for seawater conditions. Furthermore, they offer a highly attractive price-performance ration and make test kits in laboratory quality affordable for the standard hobby user. Additional characteristics of our REEFER test kits: calibrated dropper made by a German manufacturer ensures uniform drops during all repeat tests reagents are made in Germany in accordance with EN ISO 9001 reagents are analysed according to AAS and NIST standards strict batch and quality control easy to use with intuitive pictogram instructions Made in Germany NYOS® REEFER test kits allows you to achieve precise and most importantly reproducible (i.e. in repeat measurements identical) measuring results. High Sensitivity Seawater Phosphate Test Kit highly sensitive reagents professionally calibrated colour chart differentiated colour gradations precise sliding comparator sample tubes made of glass Technical Details Number of Tests: 50 Measurement Range: 0.025–1.0 mg/l PO4

A recent post in Pasar Malam re-kindled my interest in Sulpur Denitrator. Professor Guy Martin from Ecole Nationale Supérieure de Rennes was believed to be the first person to applied the sulphur denitrification into freshwater treatment for public. In 1991, Marc Langouet, who is a student of Prof. Martin decides to test this method on seawater. After 3 years of testing without apparent toxicity, Marc proposed the idea to Michel Hignette - Curator of MAAO Paris. And the rest, as most will say, "Its History". I have a Korallin C1502 Calcium Reactor which I have converted to Sulphur Denitrator 2 years ago but disconnected after I kept Nitrate in check. However, as I added more fishes Nitrate began creeping up to about 4-5ppm. As I currently do not run any other Nitrate Reactor or Bio-Pellets Reactor, I decided to do a simple experiment before I install into my main tank. In Sulphur De-nitrifications, Thiobacillus denitrificans and Thiomicrospira denitrificans, are able to use reduced sulfur compounds as electron donors and respire on nitrate in the absence of oxygen. What it means in layman terms is that the bacteria will strip Oxygen from Nitrate and by-product will be Nitrogen. According to Randy Holmes-Farley, herewith is the equation - 2 H2O + 5 S + 6 NO3- → 3 N2 + 5 SO42- + 4 H+. Korallin Sulphur Denitrator, this reactor has be disconnected from my main tank 2 years ago, as you can see the media (Sulphur & Carbonate) has turn black in certain parts. Water container A and B. Both container will contains similar amount of water from my current tank. DD Test kit, in my opinion this is by far one of the best I have used. It allows you to both test for NO3 and NNO3. Nitrate Test on Container A = +-4ppm Nitrate Test on Container B = +-4ppm Container A will be connected to the Sulphur De-nitrator while Container B will be Control. Container A and B in position Both container will remain in the semi-darken sump area of my tank for 1 week. No additional intervention. .... Day 7 .... Water from Container A of the left and water from Container B on the right. Notice water from A is brownish due to dirty Reactor. This picture is taken before adding reagent. Side by side comparison of water from A and B. A with Sulphur de-nitrification read 0 while B is 0.50 on the low range test of DD test kit. Pros: Short kick-in time compared to carbon based de-nitrator No hassle of constant feeding of ethanol Efficient even for Nitrate below 5ppm No need for additional feed pump (Applicable for Korallin and similar designed reactors) Cons: Prolonged used may lower pH FAQ extracted from - http://reefkeeping.c...1/diy/index.php How long does the media last? About 3 years according to the manufacturer. Is it hard to adjust? Not harder than a calcium reactor. The only daily adjustment you have to make is to degass the system from the top valve. About 5 seconds. What is the effluent's pH? The pH out of the effluent in my unit reads 7.5 I smell rotten eggs out of the effluent? The bacteria are not getting enough food (nitrates). At this point the unit needs higher flow or some of the media needs to be removed. Can I store the media for later use? Yes, wash the media thoroughly with RO/DI water and store in a sealed container for future use. Do I have to use aragonite on top of the sulfur media? No, but it helps to buffer the pH a bit and it buffers your tank at the same time. Don’t count on this to replace your calcium supplement anytime soon. Do I still need to do those dreadful water changes? Yes, water changes help dilute some of the more toxic compounds in your water and replace all the lost and absorbed trace elements in your aquarium. Do I need a recirculation pump? Yes, all figures are based on this. Recirculating reactors are much more efficient and are better at preventing media channeling. It also prevents air pockets within the media that kills the anaerobic bacteria which we're trying to culture. Can I use a bigger recirculation pump? Yes, you will have to throttle it back with a valve to prevent the media from fluidizing and becoming mush in there. Does Hydrogen Sulfide accumulate when using one of these denitrators? In most cases, no harmful concentrations of H2S will occur. If you are overly concerned about this there are two way to combat it: (1) Maximize aeration. A high oxygen level drives hydrogen sulfide oxidation, and high aeration will drive some off as volatile H2S gas. (2) Pass the water over iron oxide/hydroxide (GFO) to convert hydrogen sulfide to elemental sulfur. What are the cons of running a sulfur reactor? Your Alkalinity levels will drop faster than without using a sulfur reactor. It is imperative that you keep an eye on this parameter. So will I be adding this reactor to my reef tank? Yes for the time being as I am experiencing higher nitrate than I normally used to. However, I will dis-connect and reconfigure into a Calcium Reactor once I am done and have the CR run permanently when I am tired on dosing 2 parts solution plus magnesium. Happy Reefing. Ref: http://www.aquarium-...seascope_gb.pdf http://reefkeeping.c...1/diy/index.php http://www.advanceda...003/8/chemistry http://en.wikipedia.org/wiki/Mus%C3%A9e_national_des_Arts_d'Afrique_et_d'Oc%C3%A9anie http://mars.reefkeep...atorSoufre.html http://mars.reefkeep...rDenitrator.htm This post has been promoted to an article

Dear Reefers, Today I have some question in mind that wish some of you can answer for me! Will give my gratitude before asking the question. Thank you 1: How long does it take for a bio pellet to work ( as in melt and start reducing nitrate) 2: Can you dose vodka and run bio pellet at same time? 3: Does the ethanol in vodka evaporate or skim out? 4: When I start vodka dosing, do i need to turn my chiller more cold inorder for more oxygen. (since warmer water deplete oxygen faster) 5: Do i dose in the main tank or in the sump ( Skimmer portion or bio filter portion) Thank you for your time I'm using Absolute vodka 80 Proof 40% alch. For bio pellet I'm using Reef Octopus Bio sphere. Running in Skimz Reactor PS: I still do 10% water change per week.

Hi All, I need some advice for my peace of mind: Tank Info: * 3x1x1.5 display (will post picture soon) * lights T5 aquazonic 2 actinic and 2 white (planning to change to ATI soon plus addition of some LED) * with IOS, with rocks and foam(replace every 2 weeks) * no sump (as of the moment due to space constraints, planning soon) * with separate canister (have from decom freshwater tank last time, so i just put it in) * with chiller set to 26ºC, tank thermometer shows 27-28, no foam, only coral chips and some ceramics kind of bio filters * no skimmer (as of the moment due to space constraints, planning soon) * currently ammonia and nirite is zero, the problem is nirate ~40 * tank is about 7wks+ and my first marine tank Need advice: is the nitrate ~40 detrimental to zoas, octo, glove, mushrooms, gsp, candy, anemone,powder tang, clarkii? if so, how to reduce? sump, skimmer, etc...? thanks