I'm intrigued with this salt mix but skeptical just the same. Every positive response that anyone has reported in these seven pages of posts is the common response people get when implementing carbon source dosing. The improved water clarity, increased skimmate, improved coral coloration, and increased polyp extension are all very positive results that people see within the first few weeks of implementing the dosing of a carbon source.
So you take a high quality salt mix like tropic marine pro reef (TMPR) and add a carbon source to it (whatever it is that was added) and you now have a good quality salt mix with water params near NSW and an added improvement in nutrient reduction making it look like after a few water changes the tank has had a magical transformation from this silver bullet salt mix. I think the positiive observations are very likely legitimate and directly related to some organic in the mix, however, I would lay a strong bet on the fact that if a person used a quality salt mix with water params near NSW and instituted some carbon source dosing you would see very similar results.
I think it is a very clever idea for a salt mix manufacturer to add a small amount of a carbon source to a salt mix. If a reefer changes to this new salt mix they then get an additional reduction in nutrients, via bacterial proliferation from the additional carbon source, thus reflecting all the positive effects seen when implementing carbon source dosing (increased polyp ext, brighter coloration, improved skimmer function, etc....). That person would most likely reflect upon the change to the salt mix as being the silver bullet and a spectacular product not realizing that the minor addition of a certain carbon source could have induced the same response. Having an unknown organic carbon source in a salt mix may be quite detrimental becuase of the indications clearly pointed out in several previous posts. Bacterial proliferation via carbon source dosing is a very successful means of nutrient reduction and has been for decades, however, the dose is different for every tank and isn't by any means a cookie cutter type of supplementation. Unfortunately, adding a carbon source to a salt mix is providing a "cookie cutter dose". There is no way to change the amount dosed unless you change the amount of water changed. I highly suspect that the amount of carbon source is quite small in this salt mix, however, in a very low nutrient tank a sudden increase in bacterial proliferation can be a bad thing. There is also no information on what various of types of organics can build up over time and what effect that will cause on a reef tank.
I don't know if there is anything more to this salt than a simple addition of a carbon source. I do know a great deal about carbon source dosing and in the seven pages of posts I read through, the positive results that people are seeing sound exactly like when a person begins a carbon dosing regimen. That leads me to the question that everybody is asking "Is the extra money worth it?" Well, if it's nothing more than a high quality salt mix with a carbon source added then I have to say absolutely not. I can buy a quality salt mix for far less and buy a bottle of vodka to induce the same reactions everyone is reporting and do it for far less than the cost of this salt. Do I think Tropic Marine makes a good salt mix? Yes absolutely. I like to use TMPR salt mix when I can afford it and I doubt that this new salt mix will cause any significantly negative effects -short term. It's my understanding that there is little to no research on the long term effects of dosing DOC's, no scientific information as to what complications may occur as DOC's build up in a reef tank, and I think many experts would agree that when comparing nutrient management and nutrient levels in a reef tank vs a live reef in the ocean is like comparing apples to oranges. Even if we can match the exact C levels as are found in the ocean, does that mean that we should strive for that?? Well, with the significant limitation in biological diversity, significant limitation in nutrient uptake and export from various organisms, and an overall lack of biological harmony which is what makes an oceanic reef so successful, I have to say likely not. Matching every aspect of NSW reefs may not be the cats meow because our reef tanks do not function the same way a natural reef does on many many levels.
Hans-Werner
I've got to give you a lot of credit for posting here and providing what feedback you've given. Most manufacturers would hold out and not give out as much of the secret formula as you have. Most would give us the run around and rely on the "I can't give out the secret recipe" response. I don't blame you for not declaring exactly what organic compounds you've added but I applaud your openness thus far. I'm not sold on your product yet and would love to hear your explanation of why bio-actif salt mix is better than using TMPR salt mix and adding a carbon dosing regimen (at the appropriate amount for each tank at the "sweet spot amount") to induce the same response so many are claiming to find after using bio-actif salt mix. There is the one clear complaint that I can declare without even using it. If there is an added source of organic C, how do you know that the amount isn't too much or too little?? Manual dosing of any form of carbon dosing in a reef tank can easily lead to too much or too little (with significantly detrimental effects from the "too much" end of the scale) and I'm curious as to how you have come up with the magic dose. Or, have you merely come up with the addition of an organic carbon dose to create an initial impression of significant improvement of the reef tank becuase of an initial decrease in nutrient load (just like we most often see when beginning a carbon source dosing regimen)???
As you know for the measuring of organic carbon we would need special technology which we don´t have. The addition of organic carbon through feeding depends on the kind of feed and the amount that is fed. For example it seems to me that granular fish food does not contribute much to DOC. Besides this feed also add nitrogen and phosphates which speed up the degradation of DOC.
In the reefs there is DOC and POC that is more readily degraded by nearly any kind of bacteria and other that is only degraded by specialized bacteria with the necessary enzymes. We tried to support the latter ones. The introduction and initial support of this specialized microbiology is in my opinion one of the most important functions of live rock.
I am convinced that a better understanding of the dissolved organic substances will be a big progress for reef keeping and maybe also for the understanding of the natural environment and maybe we can make some people curious to take a closer look on it.
This sounds like a very logical and realistic explanation of your endeavors. Since there is no proof or indication of what bacterial activity your attempting to activate or exactly what type of organics you're adding, one could conclude that you've spent thousands of dollars researching oranics, researching coral and bacterial metabolic activity stimulation through the use of various enzyme additions and organic compound additions "OR" it could be nothing more than you simply added some ascorbic acid to the mix. I'm not trying to degrade your product by any means, but please try to understand that I'm trying to look at it from an open ended perspective. I may well try the product for myself in the future but even then how I will not know if any results I see are from the addition of a very complex mixture of organics to stimulate "specialized" bacteria or if it's nothing more than a little additional Vit C?? If you could answer that last question with a legitimate response I'd likely order a few buckets tomorrow.
Jeremy