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Old 08-01-2012, 01:26 AM   #11
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Are bio balls good in sumps? As of right now that's my only form of filtration in the sump.
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Old 08-01-2012, 09:43 AM   #12
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A lot of people have removed them from their sumps because they supposedly cause high nitrates. I removed mine years ago and replaced them with pieces of live rock in the sump.
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Old 08-01-2012, 12:34 PM   #13
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I know a lot of people will disagree and say that bio balls are nitrate factories, but I have had two tanks with live rock ( in the tank) and bio balls (back in 3 chamber built-in filter) and never had problems with nitrates. I do not do anything special to keep them down either.
I have not heard exactly how there would be more trates with something plastic growing bacteria, versus rock. Maybe one of the folks here can explain?
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Old 08-01-2012, 12:39 PM   #14
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Quote:
Originally Posted by TheTodd
The UV will get what is IN the water. Most of the beneficial bacteria in our tanks is ON something (sand, live rock, etc), so it does nothing to that because it never passes through. I don't think it can hurt, but the benefits might be questionable compared to the cost. Its been a while since I had one, but if I recall correctly, the bulbs needed replacing every 6-8 months or so, which added up over time. I never had serious algae, or other, problems, but am not sure how much of that was just good filtration and tank maintenance.
Funny cause I stated that most of the bb was not in the water and only existed in substantial amounts in the substrate, filter, tank walls, etc. And was then promptly told that if I had taken basic high school classes I would know better lol. I still think I'm right glad to see others share my opinion! I've been debating getting a uv sterilizer for a while thinking I'm going to now!
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Old 08-01-2012, 01:37 PM   #15
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I am not sure who said BB is in the water...maybe some, but my understanding has always been that it is on/in things like sand, live rock, filter sponges etc. I do not think that UV eliminates much BB, which is what someone else had asked about.
I had one on an old reef tank and did not see much benefit. Really no difference after I decided to remove it. It sounds like they are less expensive now and I do not think it will hurt to buy one. Just not sure there is as much benefit as some will expect.
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Old 08-01-2012, 08:09 PM   #16
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I'm confused why people want uv sterilzers in aquariums. They kill bacteria. We want bacteria.
Sure they kill algae as well, but the problem algae is the stuff already attached to rocks, walls etc. same for other bad blooms. The uv sterilizers don't do anything for the root problems and to me seem to be a waste of money in aquariums. Or am I missing something?

I do have one in my hottub tho. Need to kill ALL bacteria in there. Helps with the bromine needed
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Old 08-18-2012, 09:31 PM   #17
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Any review on the green killing machine uv sterilizer?
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Old 08-23-2012, 07:12 PM   #18
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Any review on the green killing machine uv sterilizer?
My mom bought me one for my birthday I really like it it's in my 55 gal discus tank the water is like absolutely pristinely clear now all the time its great
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Old 08-26-2012, 01:34 PM   #19
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I just set up a 250gal tank it came with a uv but not the pump to run it how much water flow does a uv need do I pick up a large pump or a micro pump to run it?
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Old 08-26-2012, 03:18 PM   #20
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I'd spend your money on something else. The only thing a uv sterilizer has done for me is slow my coraline growth...I have never seen any benefit out of a uv sterilizer and wish I hadn't wasted my money on one.
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