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Old 08-11-2012, 01:39 PM   #1
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Water

Hey Guys. I've got a tank that has had a couple of freshwater fish in it for a couple weeks. I'm contemplating making it a nano saltwater tank. I've already got Super Naturals white sand in the tank, so all I need is salt, live rock, and the fish.
My question is, do I need to empty all the water the tank, partial water change, or just add the salt to the water I already have?
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Old 08-11-2012, 01:43 PM   #2
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You'll want to replace it with Ro/Di water.
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Old 08-11-2012, 01:47 PM   #3
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You'll need to start all over. The beneficial bacteria for freshwater and saltwater are different.
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Old 08-11-2012, 01:50 PM   #4
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Quote:
Originally Posted by Mrc8858
You'll want to replace it with Ro/Di water.
Not true had my reef over 2 years and it has always been tap water
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Old 08-11-2012, 01:51 PM   #5
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Your lucky then. Most have issues with their tap water and is highly recommended to use ro/Di water so that you can control everything being introduced to your tank
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Old 08-11-2012, 02:00 PM   #6
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Quote:
Originally Posted by Madreefer420 View Post
Not true had my reef over 2 years and it has always been tap water
It is possible to have a reef through tap water. Where this great water is coming from I have no clue as I run RO/DI with water so bad that resin that should last months barely lasts one. My local SW pal runs dechlorinated tap water and she has no algae issues...she actually starved an algae blenny. Just something you don't see very often. I'd kill for it. But, ro/di is highly recommended due to this water being rare.
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Old 08-11-2012, 02:01 PM   #7
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OK. What exactly is ro/Di water?
I've got a replacement filter cartridge ready to go. It won't be too big of a deal to replace the water. I'd probably paint the back of the tank black while it was easy to move.
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Old 08-11-2012, 02:13 PM   #8
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Ro/Di is water filtered through a Ro/Di unit which is reverse osmosis deionization. It removes pretty much everything in the water so you Can start from scratch and avoid algae issues. You can also buy it for around 30 cents a gallon I believe or premixed saltwater at your lps
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Old 08-11-2012, 03:33 PM   #9
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Well, I found Petco Premixed Saltwater. Sounds easy enough. What about the sand? I can reuse it can't I?
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Old 08-11-2012, 03:34 PM   #10
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You can reuse it. I'd give it a good rinse though.
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