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Old 07-02-2011, 05:52 PM   #31
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Being that you're setting up a 20 gallon, a skimmer isn't a necessity, I mean it'll make life a lil easier but not a necessity. Same with the ro-di, although its highly recommended all salties use one, being that you are in a smaller tank, you could get by with tap water and a good de-chlorinator

**edit** carey may need to chime in about the salinity, haven't quite got a full grasp on that yet... And you'd be surprised how simple a properly-cycled and cuc-stocked 20g saltie is to upkeep
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Old 07-02-2011, 06:42 PM   #32
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Your Salinity should be around 1.024. Use a refractometer to check salinity as they are super accurate.
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Old 07-02-2011, 06:53 PM   #33
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I keep my salinity at 1.025 in all my sw tanks, even the ones without coral just in case. But a fish only tank can be lower than 1.025.

If you do your water changes like you should you won't need a skimmer. And even then it wouldnt be unless you had some coral.
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Old 07-02-2011, 07:00 PM   #34
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So with a 50% water change a week I don't need a skimmer unless I decide to do corals in the future? So I need sand, rock, a light, the fish, the cuc, the salt, the refractometer and do they need a special food? Is that everything?
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Old 07-02-2011, 11:42 PM   #35
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No, don't do a 50% PWC, just do your regular 10%-20% weekly water change as you would on a freshwater tank. You won't need a skimmer on your tank, even if you add coral. Your weekly water change will accomplish the same thing.

I highly recommend that you get a RO/DI unit if you plan on coral, or really any invert at all. There are heavy metal levels in tap water that are toxic to corals and other inverts, have a RO/DI unit would remove these. Dechlorinator only removes chlorine and chloramines, nothing else.
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Old 07-03-2011, 02:55 AM   #36
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I don't think I can afford a ro di unit.
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Old 07-03-2011, 10:59 AM   #37
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A RO unit is cheaper than buying RO water in the long run.
I am glad to see you doing all the research before jumping in.
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Old 07-03-2011, 11:26 AM   #38
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Quote:
Originally Posted by carey View Post
I keep my salinity at 1.025 in all my sw tanks, even the ones without coral just in case. But a fish only tank can be lower than 1.025.

If you do your water changes like you should you won't need a skimmer. And even then it wouldnt be unless you had some coral.
My tank leveled out at 1.023. wish I wouldve just filled the whole tank THEN mix in the salt
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Old 07-03-2011, 11:35 AM   #39
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I don't think I can afford a ro di unit.
You can try eBay. I know several people here have bought one of those portable RO/DI filters for as low as $60. It will be worth it in the long run, if you want an easier time dealing with nuisance algae and maintaining perfect water quality.
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Old 07-03-2011, 03:06 PM   #40
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Ok I'll search eBay. Would I be ok without ro water for a month or two?
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