Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 01-09-2004, 05:54 AM   #1
Aquarium Advice Freak
Join Date: Apr 2003
Location: Singapore
Posts: 344
Evaporation = Water change ???

Hi, I would like to ask whether does evaporation same as water changes? I have a cooling fan which is blowing at the water and the evaporation rate is quite fast, I add about 1.5 Litre of fresh water everyday. So is this same as water changes? Do I still need to perform water changes every week? BTW does salt evaporate? Or just water will evaporate in SW?

mansiz is offline   Reply With Quote
Old 01-09-2004, 07:32 AM   #2
Aquarium Advice Addict
Join Date: Sep 2003
Location: Athens, TN.
Posts: 3,598
Salt does not evaporate. So when doing top offs you do not need to add salt. You need a test kit to answer the other question. If all your water paramators are good then yes, I guess you could use the 1.5 litre daily top off as a water change. What are your water paramaters?


Vote for AquariumAdvice
dralarms is offline   Reply With Quote
Old 01-09-2004, 08:15 AM   #3
AA Team Emeritus
Join Date: May 2002
Location: Virginia
Posts: 2,256
Send a message via ICQ to fishfreek Send a message via AIM to fishfreek Send a message via MSN to fishfreek Send a message via Yahoo to fishfreek
I agree they are not equivilent. In adding water from evaporation your basicly pardon the pun. 'watering down' the concentration of salts, trace elements and other DOC's in the water. As water evaporates these levels get more concentrated in the remaning water. The change is fairly suttle since you should be doing daily or bi daily topoffs. The saltcreep you see is whats left behind when saltwater evaporates.

When you do a water change your physically tanking water out of the system and adding clean water back to the system. Your not only diluting whats in the system but your also removing some of the DOC's and impurites as well as adding back into the system some trace elements.
Remember dont tap the glass, your fish will think you're an idiot -Anonymous mother

Check out our articles area. 30+ Aquatic articles for your enjoyment
Are you in or around the Shenandoah Valley area? If so click here to join our regional forum.
fishfreek is offline   Reply With Quote
Old 01-09-2004, 02:16 PM   #4
Aquarium Advice Freak
Join Date: Oct 2003
Location: Staunton, VA
Posts: 338
Send a message via AIM to mrrrkva
Very Well said Fishfreek. You need to continue to do waterchanges, simply because the "bad stuff" is left behind when the water evaporates. When you topoff your water, just use fresh water (preferably RODI) If you dont use RODI water, you will be putting other impurities back into your tank
Check out my webpage!!!! Click on marine life!

mrrrkva is offline   Reply With Quote

change, water change

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
water evaporation samvandersteen Freshwater & Brackish - Getting Started 3 09-07-2009 03:57 AM
water evaporation new2betas Freshwater & Brackish - General Discussion 7 07-27-2008 01:15 AM
Water Evaporation Bonez Saltwater Reef Aquaria 4 06-10-2007 09:47 PM
WATER EVAPORATION adacaro Saltwater Reef Aquaria 19 01-10-2006 01:58 PM
water evaporation Dayna Saltwater Reef Aquaria 8 06-14-2004 07:32 PM

» Photo Contest Winners

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 04:31 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.