Salt!

I don't know why there is so much confusion over marine salt and aquarium salt. They're definately not the same thing and should not be used for the same purpose. As we've established on this thread and several others, brackish water must be made with marine salt and there really shouldn't be so much confusion over that, although apparently for some reason there is. I thought that originally when this thread was started, Kasakato was saying not to use table salt or aquarium salt unless you have sick fish, correct? That's what he's trying to say is a myth, that aquarium salt is beneficial in a FW tank all of the time, right?
 
When researching on the internet, you get a wide variety of opinions regarding the use of salt in freshwater tanks – some are outright negative, some are glowingly positive, and the vast majority are in the range of indifference about the addition of salt to using salt for specific purposes, such as a tonic or an aid for some diseases (such as ich). In my opinion, I believe that the wide range of opinions regarding the use of salt with freshwater fish is do to the lack of any real hard evidence as to whether it really is detrimental or helpful, which is often the case for many fish keeping theories. And that is why we have had so many debates about this point on AC, complete with personal attacks that add nothing and belittle us all.

In the 37 years I have kept fish, I have used salt from time to time for various reasons. While I have never had any bad experiences using salt, I cannot unequivocally state one way or another whether its use was overly beneficial. In the end, I believe regular, substantial water changes will accomplish many of the goals in which people use salt in the first place. Most of our fish in the wild will never be in the same water twice – the rivers flow, and most lakes have at least some tidal movement or upwelling that circulates the waters, as well as the influx and outflow from rivers. Why should we let our aquariums stay full of “stale” water, filling with organic compounds, nitrates, etc. Keep the water moving. I personally believe this will prevent the lion’s share of the diseases we deal with and provide the “tonic” our fish need. After all, how many of us have spawnings immediately after water changes, or see marked improvement in eating, coloration, activity, etc. If I add anything extra, it is in the form of trace elements or water conditioners that make my water more similar to that which my fish originally came from.

Per the “Facts on File Dictionary of Marine Science”, 1988, brackish water is define as “water that contains too much salt to be drinkable…but not enough to be salt water. Its average salt content ranges between about .5 to 1.7%.” The average salt content of all the worlds oceans is 3.5%. So for the most part, brackish water is closer to fresh water than it is to salt water.

I enjoy the time I have spent on AC – the friendships, the information, the silliness at times (Smilie Wars!). I have gleaned a lot of great information, and I have seen a lot of silly nonsense. I believe we are all intelligent enough to sort it out on our own, and personal attacks or rigid attitudes don’t help. When I post, I only post about something I have DIRECTLY experienced or have been told IN PERSON by someone who is a REAL expert in the field, such as world renown breeders, authors, researchers, etc. If someone has already posted exactly what I was going to say, I don’t post. What’s the point? A high post count? It’s meaningless. Threads too often become flame wars because we take ourselves too seriously – kind of like in real life. Lets respect our differences of opinions, and try not to constantly point out the “flaws” in someone else’s ideas, tank stocking, spelling…what have you. That’s called intolerance…. and we can all see where that gets us in the “Real World”. Happy posting everyone!
 
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I followed Dave's article on salt treatment for ich and it was great. That would be my personal experience. I told a friend about it...who of course thinks she knows more than me...and she told me salt was an irritant to fish.blah blah..and was bad. I said..well it worked. She also told me how ich always lived in your tank and it would come back. SHe had ich and she tore the whole thing down and boiled everything. This woman has been fishkeeping for years, I can't believe how much she doesn't know.
 
Oh, Yofishboy, your post was wonderful. That was basically what I was trying to say but you said it so much better. I think routine salt is not needed however, I do not have evidence to prove that. If other people want to add salt I say do what ever you want.
 
bob1962 said:
This is actually a debate that stems from previous threads where he claimed salt was bad for fish with no way to back it up. So he was hoping to get alot of negative feed back about salt. So I guess he cant prove his point?

Besides "ALL" freshwater has some salt in it, read it and weep.

http://www.newton.dep.anl.gov/askasci/env99/env071.htm
Yes, all freshwater has some salt in it or it would be distilled or deionized wter. But your tapwater already contains salts and trace minerals so adding more just because is kind of silly. Also adding any sort of unspecified and unmeasured amount doesn't really help either.

And here is a nice link to my local drinking water. http://www.hrwc.ns.ca/water_quality/analysis.pdf
 
Well that first linked article wasn’t helpful. Too many errors and generalizations. FW protozoans do have a ‘kidney’ so to speak; it’s the contractile vacuole (SW protists lack them). Some internet authors didn’t pay attention to grammar school biology when the teacher drew the 3 foot paramecium on the blackboard. It’s the contractile vacuole you’re attacking with FW salt treatments, not the cell membrane.

Also, parasitic protozoa of fish come in 3 flavors; obligate, ectoparasite, and commensal (when numerous in the gill chambers). All have varying tolerances to salt concentrations. While some obligate parasitic protozoa seem to react poorly to lower salinity changes it can take the equivalent of up to 3 tablespoons per gal of salt to damage the others, such as the commensal stalked protozoans. 1or 2 tablespoons of salt per 5g of water is a very weak killing tonic. From articles and studies I’ve read it takes about 1 tablespoon of salt per gallon to even begin to put a dent in the meiofauna community.

Claims about an improved slime coat fending off ‘pathogens’ also needs to be examined. The list of ciliates and flagellates that feed off fish slime coats and gill filaments is extensive, and there are some ciliates that actually bore right through it. Most are ectoparasitic in nature. Slime coats may be helpful against some bacteria though. Some of the ‘good’ heterotrophic bacteria responsible for decomposition can turn ‘bad’; infecting dead cells on injuried fish. So take it FWIW.

FWIW, back in the early 1990’s I tried unheated plant tanks. The first tank came down with ICH and killed off most of the fish. The 2nd tank I added the 2 tablespoons per 5g and that tank came down with ICH. After that I just added heaters to all my tanks and haven’t had a case of ICH since. Also, If you search the APD list you’ll find a post by Mike Wickham, author of “The Complete Idiots guide to FW Aquariums”, who also had an ICH outbreak in lightly salted tanks . So there’s 2 examples of the 2t per 5g not working as claimed. Point being is that adding salt to a tank is no substitute for proper husbandry and tank maintenance procedures.

I think the only ones that do better than the guys who sell us salt for our aquarium are the guys that sell ‘Mississippi Mud' to Major League Baseball for the balls. I hear they get $40 a quart. :)

Be careful with hobbiest articles and quoting 'facts' from them. Or as said in the investing world, "DYDD" (do your due diligence)


Tom
 
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