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I can see why the bad experience and I wouldn’t blame you, both products will have a high content in potassium that is one of the macro nutrients that can be a limiting factor for algae and phytoplankton including dinoflagellates, in addition potassium nitrate contains nitrates, nitrogen and potassium, Urea is fairly high in nitrogen, all together is the ideal product to raise algae and plants. I believe that this is part of the current misinformation around nutrients, inorganic nitrates and phosphates have little impact on algae and coral alone imo it’s the several different forms that they can be obtain that we should take in consideration wend dosing to achieve the desired outcome without any adverse consequences.
I considered that as a possibility, but remembered in the past, I had dosed sodium nitrate and trisodium phosphate but had similar results, typically after a 5-6 days of dosing. One commonality besides the nuisance algae was a gnarly case of dinos, which would make sense considering everytime this happened, I was carbon dosing.I can see why the bad experience and I wouldn’t blame you, both products will have a high content in potassium that is one of the macro nutrients that can be a limiting factor for algae and phytoplankton including dinoflagellates, in addition potassium nitrate contains nitrates, nitrogen and potassium, Urea is fairly high in nitrogen, all together is the ideal product to raise algae and plants. I believe that this is part of the current misinformation around nutrients, inorganic nitrates and phosphates have little impact on algae and coral alone imo it’s the several different forms that they can be obtain that we should take in consideration wend dosing to achieve the desired outcome without any adverse consequences.
I think opinions also differ and change based on the maturity of the tank and the reefer. My tank is going on 2 years and In the 2 years I ran into problem after problem. Nutrients bottomed out, started dosing to hit measurable nitrate and phosphate which led to more issues. Eventually I just stopped adding anything but food to the tank.
Things are slowly turning around and I'm still measuring 0 0. The balance In a newer tank starting steril just swings too wildly to mess around with in my opinion.
My acros are starting to show decent growth out of months of nothing when trying to keep nutrients at a specific number. I think I may try it again once things mature more.
I also target feed which may be why my corals are doing great regardless of the nutrient test readings.
Again I have no doubt when the tank becomes rock solid stable that I will start slowly increasing nutrient availability in the water.
That sounds like my experience. My last nutrient "event" nearly wiped out a large montipora spongodes colony. It turned totally brown and had evidence of necrosis over probably a quarter of the colony. A month of heavier than usual feeding and it almost completely bounced back and colored up. Back when I tried to correct low nutrients by dosing, it would take a few months before everything looked normal. Maybe it's because I was also fighting algae/ dinos and trying to make things look "right", which meant lots of hands in the tank and lots of messing with stuff which = instability. The last time, I just let things be ugly, fed more and the issues kid of fixed themselves. Like you mentioned, our tanks vary.I think opinions also differ and change based on the maturity of the tank and the reefer. My tank is going on 2 years and In the 2 years I ran into problem after problem. Nutrients bottomed out, started dosing to hit measurable nitrate and phosphate which led to more issues. Eventually I just stopped adding anything but food to the tank.
Things are slowly turning around and I'm still measuring 0 0. The balance In a newer tank starting steril just swings too wildly to mess around with in my opinion.
My acros are starting to show decent growth out of months of nothing when trying to keep nutrients at a specific number. I think I may try it again once things mature more.
I also target feed which may be why my corals are doing great regardless of the nutrient test readings.
Again I have no doubt when the tank becomes rock solid stable that I will start slowly increasing nutrient availability in the water.
With the exception of nutrients bottoming out that may cause dinoflagellates, I can’t see any issues with sodium nitrate and trisodium phosphates with the small exception that may raise alkalinity slightly as we discussed before. There’s other factors besides the addition of nutrients that could of being the culprits.I considered that as a possibility, but remembered in the past, I had dosed sodium nitrate and trisodium phosphate but had similar results, typically after a 5-6 days of dosing. One commonality besides the nuisance algae was a gnarly case of dinos, which would make sense considering everytime this happened, I was carbon dosing.
Thank you, not much information there and it’s not on the brightwell website just yet. I would be curious if they changed the formula due to the increase demand to raise nutrients.
I am currently purposely trying to keep my nutrients up with phyto as my tank is currently fallow. I dose 10 ml a night.
I am trying to adopt a all natural reef. I feel if the ocean can naturally maintain it there is something natural we can use to maintain things too. We’ll see how that goes.

There are two main factors IMO:is it mainly because there’s a lack of literature on the understanding of enclosed systems nutrition or mainly just a personal choice because the subject is not well understood for most.
There is no evidence for this statement.Because...if a system is properly set up, adding additional direct supplements (such as those you mentioned, like carbon dosing or n03 or p04) should never be necessary and can often become a more precarious balancing act to maintain long-term.
Very well said, I believe that in addition to what you just said on the evolution of filtration we should add that there is many more additives that contain dissolved organic carbon in comparison to a few years back.There are two main factors IMO:
The first one is that much of reefkeeping knowledge/canon/etc is essentially misapplied freshwater fishkeeping rules. The "Cycle" is a good example of this - people worry about nitrite, and spend weeks watching their nitrite drop - because nitrite is really toxic to freshwater organisms - but it's almost completely non-toxic in saltwater because of the higher levels of chlorine ions. And yet, people keep pushing these 4 month cycles when we're pretty much done with the important part in a couple days.
The second one is that we've had drastic improvements in technology and equipment and testing over the last couple of decades, and much of reefkeeping knowledge/advice/etc hasn't caught up. The average 90 gallon tank in 2000 probably had 4 maxijets in it doing 296 gph each. Now it has a couple of wavemakers/gyres/whatever doing 3-4000 gph each.
Decent equipment is also drastically cheaper than it was two decades ago - ASM skimmers (as an example) have managed to hang around for a couple decades largely unchanged - and prices have largely been flat. A G3 used to run you about $300. They're still $300 - with two decades of inflation, they should be $600+
What this means is that it's way, way, way easier to remove waste from a modern reef tank than it was to remove it from an old reef tank. It's not only possible, but relatively easy to strip a modern reef tank to the point where you're killing corals. Back 20 years ago - it was hard to do this without systems like Zeovit. And that's not even getting into the prevalence of dry rock today, and the fact that it tends to suck up phosphate.
And the advice just hasn't caught up. I see soooo much nonsense telling people who clearly have problems in their reef tank because they're either phosphate deficient or nitrogen deficient - and people telling them that they need to scrub harder - and then they just get into this endless cycle of dinos and cyano and everything else, when a couple of mls of phosphate would have fixed the problem.
Phytoplankton is very misleading in our hobby as a natural approach.I am currently purposely trying to keep my nutrients up with phyto as my tank is currently fallow. I dose 10 ml a night.
I am trying to adopt a all natural reef. I feel if the ocean can naturally maintain it there is something natural we can use to maintain things too. We’ll see how that goes.
You can literally read online forums from 10+ years ago where reefers kept systems and did not dose additives and had great success.There is no evidence for this statement.

And please explain to me your counter statement that defines why they should be necessary.There is no evidence for this statement.
True. But, in the advancement of reef keeping, more people now are having way more success.You can literally read online forums from 10+ years ago where reefers kept systems and did not dose additives and had great success.![]()
Sure, but the other guy flat-out said "there is no evidence for this statement" which is simply not true.True. But, in the advancement of reef keeping, more people now are having way more success.
Lots of variables here. I dose no3 because if I don't it will go to zero in a week. Po4 is steady at 0.08 all the time.Sure, but the other guy flat-out said "there is no evidence for this statement" which is simply not true.
I personally have had systems in the past that absolutely flourished and did not require dosing carbon or no3 or po4 dosing, etc. His post basically says he doesn't believe that is possible; which is obviously an idiotic statement.

There is no compelling evidence for this statement.True. But, in the advancement of reef keeping, more people now are having way more success.

You didn't feed the tank?Sure, but the other guy flat-out said "there is no evidence for this statement" which is simply not true.
I personally have had systems in the past that absolutely flourished and did not require dosing carbon or no3 or po4 dosing, etc. His post basically says he doesn't believe that is possible; which is obviously an idiotic statement.

