http://www.utahreefs.com/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 16 Jul 2026 09:55:47 +0000 Mon, 04 Aug 2003 07:09:36 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.03 360 www.utahreefs.com/forum/RSS_post_feed.asp?TID=767 http://www.utahreefs.com/forum/1by1.gif http://www.utahreefs.com/forum/ http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6776&title=salinity-levels-requested#6776 Author: KeoDog
Subject: 767
Posted: August 04 2003 at 7:09am

I actually bought online at Big Als but I noticed awhile back that their price had gone up to about $40. I believe you can get them at www.thatpetplace.com for about $17.]]> Mon, 04 Aug 2003 07:09:36 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6776&title=salinity-levels-requested#6776 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6774&title=salinity-levels-requested#6774 Author: jfinch
Subject: 767
Posted: August 04 2003 at 6:34am

Thanks Kevin, I'll look for the Tropic Marin (did you find it locally?).]]> Mon, 04 Aug 2003 06:34:21 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6774&title=salinity-levels-requested#6774 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6773&title=salinity-levels-requested#6773 Author: KeoDog
Subject: 767
Posted: August 04 2003 at 6:11am

Jon, I think the hydrometers with a swing arm can be consistant but over time if you don't recheck it it could drift off because of build up on the arm and or pivot point. The glass one I have is a Tropic Marin. It is calibrated at 75 degrees. It is about 15 inches long and the scale goes from 1.018 to 1.028 (I'm just going from memory here so I may be off a little.) The scale is about a half inch between say 1.025 to 1.026 with marks at every 0.0001. I used to have a Lamotte but the kids broke it. The scale on the Tropic Marin is much wider. The only trouble with it is I can't use it to measure hyposalinity. That's what the Lamotte was for.

Edited by KeoDog]]> Mon, 04 Aug 2003 06:11:43 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6773&title=salinity-levels-requested#6773 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6744&title=salinity-levels-requested#6744 Author: jfinch
Subject: 767
Posted: August 03 2003 at 10:11am

Kevin, you don't think the swing-arm type are consistantly off. i.e. that they couldn't just be compared to a refractometer to get a constant difference that is either added or subtracted from the swing-arm reading even at a different salinity?

I have looked all over for a floating hydrometer with a lot of space between the graduations. All that I've seen have about 1/4 - 1/2 inch between 1.020 and 1.030. Is your's wider then that?

Floating hydrometers can be very accurate. I won't vouch for the ones sold in fish shops, but we have/use many different sized ones out at work. The largest (at least most popular) manufacture of precision hydrometers is Ertco. If you're using a lab standard hydrometer it's most likely an Ertco and calibrated to 60°F so you must adjust your reading to your tank's temperature. Most that I've seen sold in pet stores are calibrated to 77°F and there is a very slight adjustment from there to say 82°F (may not be worth the bother).]]> Sun, 03 Aug 2003 10:11:41 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6744&title=salinity-levels-requested#6744 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6739&title=salinity-levels-requested#6739 Author: KeoDog
Subject: 767
Posted: August 03 2003 at 7:55am

I don't know what kind you have but I know mine is very, very accurate. I just wipe mine off with a towel after I test. If you are worried about how accurate yours is then test it against a refractometer and if it is off just adjust your reading. Unlike the swingarm types it should always stay consistant.]]> Sun, 03 Aug 2003 07:55:37 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6739&title=salinity-levels-requested#6739 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6718&title=salinity-levels-requested#6718 Author: Suzy
Subject: 767
Posted: August 02 2003 at 8:48am

That is too easy! And I've got some pvc in my useless aquarium crap stash! Thanks! Do you think it's pretty accurate? I've actually got one in that same stash....Do you clean it with vinegar or anything?]]> Sat, 02 Aug 2003 08:48:49 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6718&title=salinity-levels-requested#6718 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6714&title=salinity-levels-requested#6714 Author: KeoDog
Subject: 767
Posted: August 02 2003 at 7:50am

Suzy, I use the floating type (Tropic Marin). Just get a piece of 2"pvc or similar and glue a cap on one end. Then just scoop water out of your tank and place the hydrometer in it. This also makes it very easy to read.]]> Sat, 02 Aug 2003 07:50:11 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6714&title=salinity-levels-requested#6714 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6710&title=salinity-levels-requested#6710 Author: Suzy
Subject: 767
Posted: August 02 2003 at 7:10am

Hi,Jim! Glad to see you're back! Do you think the floating hydrometers are accurate? It's a pain to turn all your pumps off and crap, but I've spent too much $$$$ lately on other crap! Gotta wait for a birthday or Xmas or something...And why do you think it's bad to run salinity low? I want to lower ours a little, 'cause the rotifers like it a little lower.....I'm afraid they will go into shock when I throw 'em in.(Wait, like it matters! They're just instantly scarfed down!)]]> Sat, 02 Aug 2003 07:10:59 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6710&title=salinity-levels-requested#6710 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6708&title=salinity-levels-requested#6708 Author: tankrose
Subject: 767
Posted: August 01 2003 at 11:21pm

1.25 + refractometer]]> Fri, 01 Aug 2003 23:21:59 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6708&title=salinity-levels-requested#6708 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6699&title=salinity-levels-requested#6699 Author: mereefer
Subject: 767
Posted: August 01 2003 at 8:47pm

1,023 @ 78 F ,Hydrogess ]]> Fri, 01 Aug 2003 20:47:48 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=767&PID=6699&title=salinity-levels-requested#6699