Red Sea NO3:PO4-X, Nitrate and Phosphate Reducer, 1 Liter

I've only been using this product for 6 days and have recorded measurable results. I've been battling green hair algae (GHA) in my 90 gallon tank (mostly fish with a few coral) for some time now. My nitrates have always hovered around 10ppm (I never measured phosphates until starting this product). I changed from IO Sea Salt to Seachem Reef Salt, and preformed frequent water changes (15 gallons weekly). In addition, I decreased feedings to the point I was all but starving my fish, and had limited success. After 6-8 weeks of 15 gallon weekly water changes accompanied by manual GHA removal, and starving my fish, my nitrates dropped to about 5ppm, and I did see some GHA starting to turn brown.When I started this product my nitrates were at 5ppm, and phosphates at .16ppm; so according to the directions I began dosing 8ml per day. After 3 days my nitrates dropped to 2ppm (didn't preform PO4 test), I preformed another 15 gallon water change, and following the instructions, I decreased my dose to 4ml per day. On day 5 my nitrates were 0ppm, and phosphates .08ppm. So now I'm dosing 2ml per day, and will reduce the frequency of my water changes to every two weeks. In addition, I will continue to adjust the NO3PO4x dose until I can maintain nitrates between 1-2ppm as recommended by Red Sea.During these 6 days, I have seen more of the GHA turning brown and beginning to dislodge from the live rock. I will update this review in a week or two with a report on the GHA battle.Also, I highly recommend using this product in conjunction with the "Red Sea Algae Control Multi NO3/PO4 Test Kit" to accurately measure your results.

I've used NoPox in my reef for the last 9 months, and I've now started using it in my large FOWLR aquarium as well. There are multiple ways to reduce nitrates in saltwater aquariums, but NoPox (which is basically just methanol and vinegar) makes it very easy.From my observations, I can tell you a few things. First, start slowly. Nothing good happens quickly in this hobby, and reducing nitrates is part of that. I always begin with a half daily dose for the first week, and scale up from there. That seems to reduce or eliminate the initial bacteria blooms, and if you're keeping sensitive corals it will prevent you from rapidly bottoming out your nitrate and shocking them.Second, although the product says you shouldn't use phosphate removers in conjunction with NoPox, I've always done so, with no problems. NoPox is highly effective at removing nitrates, but in my experience doesn't really touch phosphates. You can still use phosguard or GFO with this product.Lastly, make sure you have an efficient protein skimmer running 24/7, and give it 3-4 weeks (or more) before you decide it's not working for you. If you're going slowly, it'll take time to lower your nitrates, but NoPox will do so. Just remember to adjust (as in reduce) your daily dose as your nitrates fall below 5-10 ppm.

What I do like the mixture isn't straight vodka like others that can cause a bad bacteria bloom that kills some fish . But with any dosing keep your tank aerated. I lowers nitrates slowly and safely.

I have a 75gl reef that developed dinoflagelletes last year. I have lost all my SPS in that time period. The LPS have survived, but not thrived in part because I had to stop doing water changes in an attempt to kill off the dinos. I had tried everything...huge water changes, no water changes, biopellets, blackouts, etc.After losing a clam that I had for so long it was practically family, I made a decision to try NOPOX before doing a complete teardown of the tank - simply because I wasn't enjoying the tank anymore because I couldn't add anything new...and no one had a solution for dinos.I honestly didn't expect much. I've been in this hobby for 25 years and I've tried everything (at least once) over the years. I don't believe in magical potions and medias. But I also have been fighting this war with the dinos for so long that $24 was worth a shot.I put the bottle on a doser six weeks ago at 3ml per 25gl or 9mls per day. My fish and coral bioload were high and because I had stopped doing weekly water changes six months ago my NO3 and PO4 were also at toxic levels. As of today my levels have plummeted although still too high to want to talk about. The good news is it appears that the dinos are nearly gone. On week #4 my tank did get some funky brown algae bloom which was ugly...but rather than dial back my dosage I added 75 hermits and that was digested within days. I will continue to use this product until I get down to zero NO3 and montitor the PO4 level to see if that decreases. My skimmer pulls out about one full skimmer collection cup of dark crud every two days and I've had to change my filter socks more often. Things are improving and I will update this review once my NO3 and PO4 levels are within an acceptable range again...and the dinos are eliminated (crossing fingers).Why do I say this stuff in DANGEROUS? Because if you accidently overdose this, then you should expect death on some scale. Google NOPOX overdose so you understand the risk. I still think its a great product, but unfortunately this would be deadly in the hands of someone that is lazy or just uninformed. Read the directions. Test weekly. This product is acetic acid and methanol. The fumes could be flammable. Do not dose over your tank or sump....if you drop the bottle in (which people have done) then you will have a situation on hand. The bacterial bloom will cause Ph and oxygen to suddenly drop, the water will cloud and you'll get this "bio-film" which will make things sluggish. I had a friend overdose this yesterday...dropped in 200mls instead of 20mls the first time he tried it. Yes, his math was off. That decimal point debacle may well cost him the contents of his tank if not to leave the hobby. For this reason, I believe this product should be on a doser so that it is consistently/accurately dosed daily.There are a few things in this hobby that you can overdose and still have a tank the following week. This is not one of them. If you don't understand what this product is and does, then I'd advise you to do some research until you can respect the process of carbon dosing and weigh the pros/cons. If your NO3 is as low as 40ppm, then you can solve that in countless other ways. If you start creeping up that nitrate ladder, then you you need help beyond simple water changes because you have been negligent along the way....whether planned or not. Just respect that this is methanol and like vodka you wouldn't just free pour that into your tank. Carbon dosing is carbon dosing...vodka, biopellets or this.If you have dinos, then I feel your pain. And my only recommendation is to try this before you waste another month let alone a year or more fighting it any other way. And there are many different types of dinos, so I can only say that in my particular case this product seems to be highly effective. Aggressive, predatory and toxic dinos that attack gill/respiratory systems in fish may react differently. And in those cases you should be aware that disturbing the dinos on the surface of the glass or rock is what causes them to go water borne and attack the gills. Its rare, but damn when I hear someone has dinos now I understand that this is like the stage IV cancer of an aquarium.Buy this product only if you can follow the directions and are consistent in dosing daily.