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Old 04-02-2012, 09:17 PM   #1
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fish only?

So the name of this sub forum is fish only and fowlr which bring a question to my mind is there a way to keep fish only without live rock for filtration?
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Old 04-03-2012, 01:02 AM   #2
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Yes. Hang-on-the-back filters and canister filters work if you don't have live rocks.
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Old 04-03-2012, 04:01 PM   #3
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So I guess what my real question is is why use live rock if you can use standard filters to achieve the same results? Say a small fish only tank with docile species so hiding holes aren't needed why use live rock?
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Old 04-03-2012, 04:06 PM   #4
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Yes they are not essential.
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Old 04-03-2012, 04:32 PM   #5
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Live rock is a natural filtration and it is much more efficient than canisters or hang on filters.
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Old 04-03-2012, 04:34 PM   #6
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Docile or not ,i think fish like some sense of security and like to have a nice sleeping cave ...Why don't you want it?
It also houses tons of microscopic critters and ones you can see come out at night and crawl around..Sometimes i enjoying watching my tanks at night over the day,because thats when things you never see start to come out..Its pretty cool..While i don't believe its necessary ,its definitely nice to have ,,gives a natural look too..

It really doesn't serve for as much filtration as people tend to think either..
http://reefkeeping.com/issues/2004-0...ture/index.php
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Old 04-03-2012, 04:45 PM   #7
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Wow I never knew that. So if i used all base rock then i really don't have good filtration ?
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Old 04-03-2012, 04:51 PM   #8
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I had over 250lbs of live rock in my 125g and the bio filtration was excellent. I lost a huge seahare in my tank and was just testing and waiting for the ammonia spike and it never came. lol

Rock that is lightweight, porous and has lots of nooks and crannies is the best thing I think for a tank. Lots of places for pods and other sealife to grow and thrive. The live rock is sometimes just as fascinating as the fish in the tank.
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Old 04-03-2012, 09:41 PM   #9
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Quote:
Originally Posted by MatthewM View Post
So I guess what my real question is is why use live rock if you can use standard filters to achieve the same results? Say a small fish only tank with docile species so hiding holes aren't needed why use live rock?
Standard filters cannot culture anaerobic bacteria, which slightly helps decrease nitrAtes. Some people like using the combination of both standard filters and live rocks.
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Old 04-03-2012, 11:28 PM   #10
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Quote:
Originally Posted by Terrance

Standard filters cannot culture anaerobic bacteria, which slightly helps decrease nitrAtes. Some people like using the combination of both standard filters and live rocks.
Acually my preference! It's not that I don't want to use live rock I would use it simply for looks if nothing else I was just wondering earlier when I looked and I hadn't ever heard the real need for live rock before!
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