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Old 10-27-2005, 06:10 PM   #61
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Originally Posted by greenmaji
Now that it has happened.. what peramiters would you suggest testing when a new bucket or bag of salt is opened?
any of the heavy metals?
I pity my fish much more than myself, but I did learn a valuable lesson. PH, Alk, calcium and if they are in line with what I normally have I feel very safe. I do the first few water changes of a new bucket this way. I do not test for heavy metals, and personally believe (through no experimentation of my own) that the "toxic heavy metal" bandwagon of a few years ago was a dangerous overstatement. As with other testing, it fell short of a true scientific test involving replication and tests on other species to determine if it was indeed a valid problem. Essentially, it remains a hypothesis (if we are both talking about the Shimek experiment on urchin larvae).

Quote:
Originally Posted by Royal Gramma
May I ask how long ago was that? Has the system possibly improved by now?

Greenmaji,

I finally mixed my pwc water yesterday morning and got up this morning and tested my CA on the Tropic Marin... I was not impressed with the 310 I got. I didn't get to test PH or Alk, I will do that when I get back home tonight. I used A Profi Salifert CA test kit. I do have my tank at 420 through Kalkwasser dosing, but that was indeed an unimpressive CA reading.
The system is finally what I consider stable and moving forward again, even though I knew it would not be quick it was a year full of thoughts about tearing it down and starting over. However, I also learned (rather anecdotally) that I believe a sandbed can recover from what is often labeled "old tank syndrome" through better husbandry (replenishing microlife, improving export, etc.).

In regards to your calcium levels RG, I would not be disappointed with your 310 reading. Its important to realize that there are many target number by various hobbyists and that there may be variables such as calcium in tapwater (yes, some folks don't use strictly RO) that makes it safer to provide a stable, reliable reading and to allow aquarists to buffer as they see fit. From a buffering standpoint, it is probably the easiest to do while maintaining equilibrium everywhere else (as opposed to the yo-yo that can occur while trying to balanced out alk and PH, etc.)

Recently, the trend to push the "best" calcium level has steadily been rising to levels of 450ppm or so where it was not so high a few years ago. I find this to be another bandwagon tendency. There really isn't any scientific evidence proving that boosting calcium far higher than NSW(natural saltwater) levels does anything to increase calcification so really I don't see the benefit of wanting or boosting it so high other than getting it close to precipitating out of solution. Really analyze the hobby and you will find that if you anecdotally report a benefit from just about anything, you can really steamroll a trend online (also see the recent price gouging of <insert extreme sarcasm> "rare" Acans0. Its one of the only unfortunate downsides from us all meeting and sharing in such large numbers.

http://www.advancedaquarist.com/issues/apr2002/chem.htm

This is an good read on calcification and its relation to calcium levels in aquaria (some chemistry, which is over my head but it also has a good info throughout and a review of the implication on water chemistry at the bottom for those of us that don't need to know the extreme nuts and bolts of it all with the formulas). The exact "whys" of the ineffectiveness of raised calcium levels on calcification is unknown, but I find it to be a reasonable observation.
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Old 10-27-2005, 09:54 PM   #62
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I was actually thinking of stromium or other "good" heavy metals that your coarls might need.. but sure I can see were that wouldnt be much of a consern..
and yes Ive seen his artical.. and went to his forum to see the replys he made about his artical and I was not impressed at all.. thanks for the info. Hoops.. :P
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Old 10-27-2005, 10:18 PM   #63
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how about we all chip in 20 bucks and fund our on study?
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Old 10-28-2005, 01:12 AM   #64
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Originally Posted by greenmaji
I was actually thinking of stromium or other "good" heavy metals that your coarls might need.. but sure I can see were that wouldnt be much of a consern..
and yes Ive seen his artical.. and went to his forum to see the replys he made about his artical and I was not impressed at all.. thanks for the info. Hoops.. :P
Ah....boy did I go off on a wrong tangent then Well, my opinion on that is short I suppose...with frequent water changes, I don't think any of the trace element levels in the different salt mixes would be much of a factor. Honestly, over the past 4 years I have been surfing the fishy net, I have only ever seen negative comments about any salt mixes in regards to consistency of what they produce. Like many other areas of the hobby (salinity, temperature, etc.) stability seems to be the most important.

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fund our on study?
All I know is my house is out, I get in trouble these days just for having to setup the QT temporarily on the kitchen countertop :P
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Old 10-28-2005, 06:44 AM   #65
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:P
your house is out? :P Yea. if your getting in trouble with your QT.. :P
doest someone have a full set of set of Salifert Test Kits? If so.. maybe we could give that person a hand with testing costs.. LOL :P
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Old 10-28-2005, 07:01 AM   #66
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eya, im in the same boat with the qt thing. i wanted a nano for just mushrooms and my wife hit the wall. "you just got that d#*n thing and now you want another".
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Old 10-29-2005, 05:21 PM   #67
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Old 10-30-2005, 12:26 AM   #68
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My wife asked why I need another tank. I asked why she needs another pair of shoes. That was the end of that... I'm getting my Mantis Nano.
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Old 11-16-2005, 01:26 AM   #69
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Advanced Aquarist's Onine magazine published part I of II of a 30 page study on artifical salt mixes yesterday.. well today for me.. LOL
the study was more of a reaction to the Shimek experiment on urchin larvae..
Im going to give it a read soon.. but I just found the link so I thought I would share..
this was a wild thread.. maybe this might give it some new life..
http://www.advancedaquarist.com/2005/11/aafeature1
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Old 11-16-2005, 01:43 PM   #70
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