defigart Posted August 8, 2007 Share Posted August 8, 2007 Hey everyone, I inhereted some fish, but I have a problem. The water they are used to is measuring 1.032 on BOTH my hydrometers. Since it on both of them I am inclined to beleive it is correct. The fish are the following: 1 Lemonpeal Angel 1 HUGE Marron Clown (Assumedly female, due to size) 2 green Chromis I need to lower the salinity of the water they are in. How slowly should I do it? What should I lower it to? Quote Link to comment Share on other sites More sharing options...
impur Posted August 8, 2007 Share Posted August 8, 2007 Just slowely add RO water over the course of a few days. I'd shoot for 1.026 SG, or 35ppt. Side note, have you tested the hydrometer against a refractometer? All hydrometers are off IME. Quote Link to comment Share on other sites More sharing options...
defigart Posted August 8, 2007 Author Share Posted August 8, 2007 Thanks for the quick reply No I haven't tested in with a refractometer. Any shops in the Portland area have one I could take a sample to? Quote Link to comment Share on other sites More sharing options...
Nyles Posted August 8, 2007 Share Posted August 8, 2007 Odds are your or his hydrometer is off, test it first, I used to use one it would say my water was at 1.025 when it was 1.032, best place for those things is in the garbage, no offense. Odds are his hydrometer was off and yours POSSIBLY may be more accurate, never know without a good refractometer. Quote Link to comment Share on other sites More sharing options...
impur Posted August 8, 2007 Share Posted August 8, 2007 Thanks for the quick reply No I haven't tested in with a refractometer. Any shops in the Portland area have one I could take a sample to? I'm sure waves, SW fantaseas, or upscales could all do it for you. Quote Link to comment Share on other sites More sharing options...
defigart Posted August 8, 2007 Author Share Posted August 8, 2007 Awesome. I looked on eBay to see how much they run. I thought they were expensive, but they run like 20-50 depending on brand and shipping. I'll probably buy one there, unless someone local has one for sale. Quote Link to comment Share on other sites More sharing options...
Nyles Posted August 8, 2007 Share Posted August 8, 2007 thats where I got mine (ebay), also waves has them for sale to, I believe he sells them for $60, not a bad price. Quote Link to comment Share on other sites More sharing options...
defigart Posted August 8, 2007 Author Share Posted August 8, 2007 Nyles, Any difference in the differnt types/brands, as long as they are designed for aquarium use? Quote Link to comment Share on other sites More sharing options...
impur Posted August 8, 2007 Share Posted August 8, 2007 Got mine here http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9957&Ntt=refractometer&Ntk=All&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1 There isn't much difference until you get up into the $150 ones that are better designed. But for what we need the 30-50 ones are fine. You might want to pickup some 35ppt calibration fluid. Using RO water to calibrate these can lead to wrong results. Here is a thread i made discussing this http://www.pnwmas.org/forums/showthread.php?t=2255&highlight=calibrate+refractometer Quote Link to comment Share on other sites More sharing options...
Nyles Posted August 8, 2007 Share Posted August 8, 2007 Nyles, Any difference in the differnt types/brands, as long as they are designed for aquarium use? Me and Impur have the same one, it is also the same one Waves carries, I think for the price its excellent. RHS-10ATC I got mine here from this ebay seller http://cgi.ebay.com/New-Salt-Salinity-Refractometer-Hydrometer-4-Aquarium_W0QQitemZ260147373976QQihZ016QQcategoryZ67038QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Apoligize for the funny font, copy pasted it. Quote Link to comment Share on other sites More sharing options...
spectra Posted August 9, 2007 Share Posted August 9, 2007 I have the same one and am in Vancouver. All depends on where you are I can swing buy and we can check the water. Just let me know. Quote Link to comment Share on other sites More sharing options...
kriswaters Posted August 9, 2007 Share Posted August 9, 2007 I ditched the hydrometer and bought the refractometer. I measured it with distilled water and got a reading of 0. Didn't need to calibrate it. I still test water from my LFS on it to make sure it matches what their (far more expensive) one reads. Kris PS. I got mine in about 10 days from Dr Fosters and Smith (link above) for about 40.00 Quote Link to comment Share on other sites More sharing options...
impur Posted August 9, 2007 Share Posted August 9, 2007 Hey Kris you should read that thread i made about calibrating your refractometer. Its scary how far off they can be when calibrating with just RO or distilled water. Quote Link to comment Share on other sites More sharing options...
defigart Posted August 9, 2007 Author Share Posted August 9, 2007 Impur, Where did you get the calibration fluid? I can't seem to find the link to it in the other thread. Quote Link to comment Share on other sites More sharing options...
impur Posted August 9, 2007 Share Posted August 9, 2007 Here is an article that explains how to make your own http://www.reefkeeping.com/issues/2004-06/rhf/index.php And here is where i got it the solution http://www.premiumaquatics.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=PIN-SAL-FLUID&Category_Code= When you get time you might read the RC thread i linked too. Has a lot of great info on this subject and a lot of people weighing in that have knowledge in this as well, like Randy Holmes-Farley. Quote Link to comment Share on other sites More sharing options...
Barelycuda Posted August 19, 2007 Share Posted August 19, 2007 Dorian, I am in Vancouver also & would be happy to double check your hydrometers with my refractometer if you'd like. I threw my hydrometer away once I got the refractometer. Cuda Quote Link to comment Share on other sites More sharing options...
defigart Posted August 19, 2007 Author Share Posted August 19, 2007 Cuda, That would be great. I would love to come look at your "Nemo Factory", and have you triple check my hydrometer for me. Quote Link to comment Share on other sites More sharing options...
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