wasp Posted March 1, 2006 Report Share Posted March 1, 2006 I've been using a Seachem kit to test calcium, brought it in from the US about 2 years ago it's supposed to be good until 2007. Now it's run out so I've started a Salifert kit, the Seachem said calcium was 420, the Salifert is saying it's 490. That's an important difference as far as I'm concerned, who do I believe? Quote Link to comment Share on other sites More sharing options...
chimera Posted March 1, 2006 Report Share Posted March 1, 2006 believe this: http://www.marinedepot.com/md_viewItem. ... uct=AM1121 Quote Link to comment Share on other sites More sharing options...
wasp Posted March 1, 2006 Author Report Share Posted March 1, 2006 Nice if I won Lotto. I'll take 10 of 'em! Quote Link to comment Share on other sites More sharing options...
chimera Posted March 1, 2006 Report Share Posted March 1, 2006 they're only $350 nzl, and when you're getting yours, buy one for me Quote Link to comment Share on other sites More sharing options...
Feelers Posted March 1, 2006 Report Share Posted March 1, 2006 Are you able to make a calibration test of some sort? Quote Link to comment Share on other sites More sharing options...
chimera Posted March 1, 2006 Report Share Posted March 1, 2006 only with a calcium monitor can you calibrate. unless you have some solution with a known Ca level which you could compare the two kits from Quote Link to comment Share on other sites More sharing options...
ghostface Posted March 1, 2006 Report Share Posted March 1, 2006 does anyone know of an electrical monitor that does more than one parameter? like ph, alk, temp, ca, phos, ammonia, nitrate? Quote Link to comment Share on other sites More sharing options...
reef Posted March 1, 2006 Report Share Posted March 1, 2006 490ppm seems very high , how old is the salifert calcium kit? is it kept in a cool place. was looking at getting a calicum meter , however the reviews on the pinpoint meter is not that great. i now use two salifert calcium kits to double check my results. does anyone know of an electrical monitor that does more than one parameter? yes, but do you have $3000 lying around. Quote Link to comment Share on other sites More sharing options...
chimera Posted March 1, 2006 Report Share Posted March 1, 2006 does anyone know of an electrical monitor that does more than one parameter? like ph, alk, temp, ca, phos, ammonia, nitrate? not quite that many, but these are close http://www.neptunesys.com/products.htm 490ppm seems very high , how old is the salifert calcium kit? thats about what mine tested last night with a salifert kit too, not old either. expires next year sometime. Quote Link to comment Share on other sites More sharing options...
reef Posted March 1, 2006 Report Share Posted March 1, 2006 thats about what mine tested last night with a salifert kit too that makes sense as your kh was very low, out of balance. most aquarium controllers will do ph. temp. none i know of will do po4.ammonia,nitrate. alk, hopefully laytons controller will. Quote Link to comment Share on other sites More sharing options...
chimera Posted March 1, 2006 Report Share Posted March 1, 2006 hopefully laytons controller will. true that pressures on layton Quote Link to comment Share on other sites More sharing options...
lduncan Posted March 1, 2006 Report Share Posted March 1, 2006 It can, If you can afford to buy the probes. All comes down whether people are prepared to pay for them. As well as how accurate you can make them in seawater. It may need to use multiple probes in combination (ie calcium and magnesium) in order to reduce the effects of interfering ions in seawater. Maybe use some complex algorithms based on the chemistry relationships between different parameters to get more accuracy. The controller has 4 built in probes sockets (which can be used with almost any Ion Selective Electrode), with the ability to add more up to a limit of a few billion. Quote Link to comment Share on other sites More sharing options...
wasp Posted March 1, 2006 Author Report Share Posted March 1, 2006 how old is the salifert calcium kit? is it kept in a cool place. . The expirey date is 07/2010. It's been sitting in my office for a few months which can heat up to 35 on a hot day, does that make a difference? Quote Link to comment Share on other sites More sharing options...
reef Posted March 1, 2006 Report Share Posted March 1, 2006 Yes it can as test kits should be placed in a cool place as they can go off if overheated. Best to test against another salifert kit. Quote Link to comment Share on other sites More sharing options...
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