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This is a discussion on Questions within the Beginner Saltwater Aquariums forums, part of the Saltwater Fish and Coral Reef Tanks category; --> Mark, Just a quick Q on your use of UV. Have you noted any negatives to it's use? I personally don't use one, but ...

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Old 07-13-2008, 02:06 PM   #21
 
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Mark, Just a quick Q on your use of UV. Have you noted any negatives to it's use? I personally don't use one, but have considered it. My hippo tang occasionally gets spots of ich among other things, but so far I've been lucky and it's cleared up in a day or so. Usually when I go messing with something in the tank, she pops up with it again for a day or so, but otherwise, she's fine. I have the UV here, just never got around to hooking it up. I don't know if I really want to go hooking it up if I don't need to. But I'm curious as to any obvious pitfalls to using one.
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Old 07-13-2008, 05:00 PM   #22
 
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I finally managed to mix the salt water in a small bucket of about 2 gallons. I currently have the live sand at the bottom, which clouded up the water alot and made the water look like I had scooped it out of the ocean. How long do you think it will take for the water to clear up? do you think a powerhead would just aggitate the water, or help it clear up faster? The HOB filter died when I tried to use it, but there was way too much filter media inside. I will try it again with just a filter cartridge.
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Old 07-13-2008, 05:52 PM   #23
 
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Quote:
Originally Posted by SKAustin
Mark, Just a quick Q on your use of UV. Have you noted any negatives to it's use? I personally don't use one, but have considered it. My hippo tang occasionally gets spots of ich among other things, but so far I've been lucky and it's cleared up in a day or so. Usually when I go messing with something in the tank, she pops up with it again for a day or so, but otherwise, she's fine. I have the UV here, just never got around to hooking it up. I don't know if I really want to go hooking it up if I don't need to. But I'm curious as to any obvious pitfalls to using one.
This is such a touchy issue i almost decided to message a response offline. But I decided that any free exchange of ideas is worth talking about.
So... warning to the reading. THE HOBBY DOES NOT AGREE WITH ME.

So, here goes. I do not buy into the concept that a UV is damaging in a reef system. I would challenge anyone to provide concrete evidence. My system is full of copepods, amphipods, feather dusters and spionid worms. I do not believe that anything beneficial to a marine system is floating in the water column. The UV can only kill what floats and is sucked into the intake.

In fact, i would suggest the opposite to be true. If it floats, it is bad. The UV kills water born bacteria, pathogens, and parasites that are responsible for the spread of disease in the aquarium. It also eliminates any water born dinoflatiglates that could tint the water and reduce light penetration.
(Off topic... I also believe the UV usage goes hand in hand with carbon, which removes acids that tint the water and reduce light penetration.)

That being said, I do take a few small precautions, just in case i am wrong. I use a very slow flow rate threw the UV, increasing the likelihood that what passes thew the unit is actually killed. I also only run the UV for 12 hours per day. I have it timed to function like the tides... only without the seasonal changes.

Honestly, i can not even begin to express the quality of success I have seen in systems with UV's as compared to those without. At this point in my fishkeeping life, I won't even set up a delicate FW system without one.
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Old 07-13-2008, 05:56 PM   #24
 
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Quote:
Originally Posted by Fish-addict
I finally managed to mix the salt water in a small bucket of about 2 gallons. I currently have the live sand at the bottom, which clouded up the water alot and made the water look like I had scooped it out of the ocean. How long do you think it will take for the water to clear up? do you think a powerhead would just aggitate the water, or help it clear up faster? The HOB filter died when I tried to use it, but there was way too much filter media inside. I will try it again with just a filter cartridge.
Until the water clears, i would point the powerhead towards the surace of the aquarium, allowing dust to settle on top of the sand. Don't worry, this happens almost every time you set up a marine system. It should be crystal clear in 24 to 48 hours.

I'm not sure how the media inside your HOB could cause it to die. It could cause an overflow, in theory, or cause the intake to overflow back into the aquarium, but it could not cause the unit to die. It sounds like you need to clean the impeller. If you need help with this, just ask.
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Old 07-13-2008, 06:20 PM   #25
 
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Quote:
Originally Posted by Pasfur
Quote:
Originally Posted by Fish-addict
I finally managed to mix the salt water in a small bucket of about 2 gallons. I currently have the live sand at the bottom, which clouded up the water alot and made the water look like I had scooped it out of the ocean. How long do you think it will take for the water to clear up? do you think a powerhead would just aggitate the water, or help it clear up faster? The HOB filter died when I tried to use it, but there was way too much filter media inside. I will try it again with just a filter cartridge.
Until the water clears, i would point the powerhead towards the surace of the aquarium, allowing dust to settle on top of the sand. Don't worry, this happens almost every time you set up a marine system. It should be crystal clear in 24 to 48 hours.

I'm not sure how the media inside your HOB could cause it to die. It could cause an overflow, in theory, or cause the intake to overflow back into the aquarium, but it could not cause the unit to die. It sounds like you need to clean the impeller. If you need help with this, just ask.
I just had a thick amount of filter fiber inside rather than a bio-bag, and the filter just couldn't take all of the detritus it was taking in along with working through more filter media than it was made too.
The foam seems to be gone from the live sand bucket, although I still can't see the sand at the bottom. I dropped in a few rocks to see if they'd 'come alive' over time.
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