high specific gravity

salty-ron · #1 01-14-2008, 02:04 AM

did a specific gavity test of my tank tonight found it to be very high.what would be a good remidy for this?

thanks salty ron.................

skylord · #2 01-14-2008, 02:07 AM

Whats very high? What are you using to test with? Do you know how long it has been high?

Scott

salty-ron · #3 01-14-2008, 02:08 AM

i think the salt content

salty-ron · #4 01-14-2008, 02:09 AM

was useing a hydrometer

christyf5 · #5 01-14-2008, 02:12 AM

What is the reading on your hydrometer?

I would gradually bring the levels down by adding fresh water (ie water containing no salt). Do this over a period of a few days to a week depending on how high it is. Don't do it all at once or you may shock the tank and some stuff may die.

Myka · #6 01-14-2008, 02:14 AM

Skylord meant what is the actual salinity reading that you're calling 'high'?

First, use this link to calibrate your hydrometer. They are notoriously inaccurate. In fact, I have never used one that read correctly. http://reefkeeping.com/issues/2004-06/rhf/index.php Then come back here and tell us what the actual reading is after you calibrate.

You should be adding plain unsalted RO water to top off the evaporation - water evaporates, but salt does not so the salinity will creep higher and higher as the water evaporates. You should top off at least once a day, but twice a day is better.

salty-ron · #7 01-14-2008, 02:15 AM

the top of the scale

salty-ron · #8 01-14-2008, 02:23 AM

i think the hydrometer is accurate its new. got some coarls today and tested the water with it and it read 1.022 took a reading of my tank and it was1.032

christyf5 · #9 01-14-2008, 02:26 AM

I would just acclimate the corals to your tank water and get your water tested by someone with a refractometer before you make any major changes. Take your hydrometer along so you can see if it really is accurate or if it is off. That way you can still use it and adjust for its error if it is. I would get a refractometer if you can though, they're much more accurate.

Myka · #10 01-14-2008, 02:29 AM

Quote:

Originally Posted by salty-ron

i think the hydrometer is accurate its new. got some coarls today and tested the water with it and it read 1.022 took a reading of my tank and it was1.032

Most hydrometers are inaccurate by 0.001 or more right out of the box. You should be aiming for 1.025-1.026. Set up some airline tubing with a little ball valve on one end, and set it to drip about 1-2 drops per second. Allow the corals to "drip acclimate" like this for an hour or so. Corals can handle a salinty change much better than fish. If your salinity truely is 1.032 then you should take about a week to slowly drop it to 1.026.