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Old 12-17-2009, 11:49 AM   #1
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Question about salt

I have been battling cryno bacteria since I started using coralife salt. Being fairly new I thought this was pretty much normal. Yesterday I was talking to a friend that has a saltwater tank about the same age as mine when he ran out of salt after the stores closed on a Sunday he asked if he could borrow some of mine. Within a week he had cryno in his tank. He has since gotten rid of it but is back to using his regular brand. Is it possible that coralife salt might have something in it that reacts to the water to cause the cryno?
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Old 12-17-2009, 06:06 PM   #2
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I personally dont think so. Excessive nutrients and not enough flow are chief causes. Here are some good links.

How to Battle Cyanobacteria: What To Do When You Just Can't Get Rid of It | Suite101.com

http://www.aquariumadvice.com/articl...ae-/Page1.html
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Old 12-17-2009, 06:37 PM   #3
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I did some research on salts trying to find a good reef salt. I have been using Coralife because I was battling Nitrtate Issues and even though all salts say Nitrate and Phosphate free there is still a trace and the charts and reading I did I found that Coralife had the least amount. I have used 100g worth of Coralife and I have had no problems so far. I have been thinking about trying Reef Crystals
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Old 12-17-2009, 07:53 PM   #4
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What I would like to find is what Sea Salt has the best levels of Calcium, Magnesium, and Strontium
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Old 12-18-2009, 01:20 AM   #5
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Joy - when I was researching salts several years ago, I did run across some anecdotal evidence that some salt brands tend to promote cyano more than others. I *think* it was the infamous "Borneman Salt Study" and if you Google that, you should find info on it.

There was a lot of criticism in the reefing circles about the study and I won't go into all that here, but it more or less focused on the somewhat non-scientific way the "study" was done. That's why I said above that the evidence was "anecdotal".

For me, there's more at work with cyano than just excess nutrients - although having them doesn't help. I would think that pH and other water parameters play into it as well. And maybe some salts give you better parameters that tend to keep the cyano at bay while others give you parameters that tend to promote it - given the same nutrient levels. Just me thinking out loud...

Your friend's experience with cyano using your salt IS interesting. Does seem like an add coincidence, doesn't it. But again... the salt isn't really "causing" the cyano - it can't. But I would think it's possible that it could make it easier to get a foothold if the water conditions are right.

Bavass - you're not going to find an answer to that question. There really is no "best" levels for those things. The "best" level for calcium itself is highly debated. Is it 380? 420? 500? 560? Everyone will have different opinions on that. And if you think super high calcium is a good thing, then your alkalinity is going to suffer. It's a trade off.

The "best" salt, in my opinion, is the one that you can easily get whenever you want, and works for YOU in YOUR tank.
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Old 12-18-2009, 01:31 AM   #6
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When I tested the water his nitrates were higher than mine but the nitrites and ammonia was at 0. I have checked water flow. I feed every other day and he feeds every day. I know it is a bacteria and not an actual algae. His cryno is gone but I still get to battle mine.

Those are the same links I have went through before trying to come up with a solution.

I got some oceanic that I will be trying for the next couple of months. I am thinking it could have just been somethng in the salt I am not testing for or even just a bad batch, I don't know what it could be from what I have been reading about the nitrates and phosphates contributing to cryno.
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Old 12-18-2009, 02:29 AM   #7
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This is interesting, I just switched over to Coralife and I am having some cyano issues now too. I don't know if it is coincidence or not. I wasn't even thinking about the salt change, I just thought I needed more flow. I ended up buying a Tunze as an auxillary powerhead to my two Vortechs, but I am still having some issues. My nutrient levels are very very low. I am overskimming big time(cone skimmer rated up to 700-gallons light bioload on my 180-gallon tank) and I run GFO and GAC 24/7 each in separate reactor chambers. My phospate test at 0-Elos and my Nitrate tests at 1-ppm-Elos and 0-ppm-API.
Now you got me wondering about this Coralife thing.
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Old 12-18-2009, 02:58 AM   #8
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Once I am out of the Coralife I already have the Oceanic already. It is suppose to mix 90 gallons so I figure I should start seeing a change in my 8 gallon within a couple of water changes if it is the salt.

Ryshark how long has your tank been set up and what was the other brand of salt you were using?
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Old 12-18-2009, 05:04 AM   #9
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I've been using "coralife" salt for 9 months now and I have no cyano at all. In fact I switched to coralife at a time when I did have an issue with cyano. My mistake is that I also added more flow and cut my feeding, so I am not sure which did it. my last testing which was this morning are. ammonia 0, nitrite 0, PH 8.3, Ca 450, Mag 1200, nitrate 0, phospate 0. I know that I have my AQ pretty wired in and I have a pretty light load as far as fish. If it aint broke don't fit it. So over all I'm happy with the salt and I get a shirt to boot.
I forgot to mention that this set up is 1yr and 11 months now.
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Old 12-18-2009, 10:01 AM   #10
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Quote:
Originally Posted by ryshark View Post
I ended up buying a Tunze as an auxillary powerhead to my two Vortechs
two vortechs and a tunze.....jealous over here!
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