Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 12-30-2006, 11:12 PM   #1
Aquarium Advice Newbie
 
Join Date: Dec 2006
Posts: 2
Kind of confused

So I keep testing my water with the hydrometer to check the gravity of it. On the back of my Coral-Life Deep Six Hydrometer and where the preferred gravity meter arrow pointer should be which is between 1.023 and 1.020. I got the gravity level in the preferred area but my mom talked to one of the employs at Petsmart and the guy said to keep it between 1.024 and 1.026. So where is the general gravity level at in most tanks??? 8O
__________________

__________________
ablanck17 is offline   Reply With Quote
Old 12-30-2006, 11:19 PM   #2
AA Team Emeritus
 
Join Date: Aug 2002
Location: Louisiana
Posts: 7,224
Send a message via Yahoo to Hara
If you have corals, you should keep it as close to 1.025 as possible. If you have fish only, you can do with a little lower. More important is keeping it stable wherever it is you choose to keep it.
__________________

__________________
Hara is offline   Reply With Quote
Old 12-31-2006, 01:35 AM   #3
Aquarium Advice Activist
 
Join Date: Dec 2006
Posts: 186
Good advice, however keep in mind evaporation. Saltwater evaporates at a good rate so if your are not home and your tank evaporates 1 gallon you do not want it at 1.025, rather 1.023 would be better so that at the end of the day it is not over 1.025.

A good auto topoff can keep things more stable.

Good Luck
__________________
Tomd is offline   Reply With Quote
Old 12-31-2006, 03:35 AM   #4
Aquarium Advice Regular
 
Join Date: Nov 2006
Posts: 88
I was always told just to top of my tank with freshwater which I always do..my tank has been cycling for 4 weeks now and I only topped with fresh and my alkalinity has always stayed at the 1.024 which was the original..I dont knos have I just been lucky? I just did my 1st PWC todayand that was the only time that I added salt. This is what my guy at my LFS told me and he deals in nothing but SW. Am I off my rocker or does anyone else just do that?
__________________
the grim reefer is offline   Reply With Quote
Old 12-31-2006, 02:31 PM   #5
Aquarium Advice Activist
 
Join Date: Dec 2006
Posts: 186
First you mean salinity/specific gravity not alkalinity.

When the water evaporates salt stays behing therefore raising your salinity. Topping off with the same amount of freshwater that evaporated brings it back to normal salinity. Preferably you want to use RO/DI.

What I do is I have a piece of tape in my sump at the water line so I know where the topoff level is. I am now moving toward an automated system however manually works just fine.

That is why I said it is a little better to have it a little less than 1.025 so that if you are not home and water evaporates, the salinity will not raise to high. Just my .2
__________________
Tomd is offline   Reply With Quote
Old 12-31-2006, 03:18 PM   #6
AA Team Emeritus
 
Devilishturtles's Avatar
 
Join Date: Jul 2003
Location: Frederick, Maryland
Posts: 8,544
Send a message via Yahoo to Devilishturtles
grim, you are correct, not off the rocker. Fresh goes in during top offs and PREMIXED saltwater goes in after the water change. If it's the same SG as your tank, you won't see a difference at all and that is prefered.
__________________
-Lindsay

Live in the Western MD/West Virginia/DC Metro Area?
Join our very active regional forum Here

Like the advice someone just gave you? Add to their reputation! Click on the balance icon underneath their username and let them know.
Devilishturtles is offline   Reply With Quote
Old 12-31-2006, 04:41 PM   #7
Aquarium Advice Regular
 
Join Date: Nov 2006
Posts: 88
Thanks Devil...I thought I was doing things correct as this is what you guys have posted on here in the past also....good to know that I am on the right track at least in one area....Also Tomd I meant salinity not alkalinity....I was reading something previous about alkalinity. I guess everyone has different ways of doing things and a person just has to find out what works for them.

Happy New Year Everyone!
__________________
the grim reefer is offline   Reply With Quote
Old 12-31-2006, 04:42 PM   #8
Aquarium Advice Activist
 
Join Date: Dec 2006
Posts: 186
What do you mean? I said yes you topoff with fresh water, preferably RO/DI?
__________________
Tomd is offline   Reply With Quote
Old 12-31-2006, 04:55 PM   #9
Aquarium Advice Regular
 
Join Date: Dec 2005
Location: Michigan
Posts: 84
I have a 72 gal and keep my salinity at 1.025. The tank evaporates about half a gallon a day. The salinity still reads 1.025. Even after 2 days almost a gallon down, still reads 1.025 using a refractometer. I always manually fill in the morning.
__________________
packagerat is offline   Reply With Quote
Old 12-31-2006, 04:59 PM   #10
Aquarium Advice Activist
 
Join Date: Dec 2006
Posts: 186
That does not really make much sense. It has to change a little with a gallon of evaporation. Are you sure your refractometer is calibrated correctly. Sometimes depending on the refrac. it can be hard to see the line. I no longer use a one I use a salinity meter that is hooked to my sump but I do use one for my frag tank and my drums.

Evaporation rates depend on different things.
__________________

__________________
Tomd is offline   Reply With Quote
Reply

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I'm kind of confused with my new Salt Water Tank. SOLIDAge Saltwater & Reef - Getting Started 19 05-03-2009 06:53 AM
Ok, I'm confused.. Gundy Freshwater & Brackish - Planted Tanks 4 10-14-2007 11:52 AM
Confused Zagz Freshwater & Brackish - General Discussion 21 03-08-2006 09:42 PM
im all confused now RoLeX Freshwater & Brackish - Planted Tanks 6 11-18-2005 10:15 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.