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Old 03-31-2014, 11:39 PM   #1
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My 165W full spectrum LED

I am in need of some light questions?
They are the chinese Ebay LED's. I was wondering if anyone has really good success with these? if so, how long have yours lasted? and how long do y'all run them throughout the day?
I believe i need to lower my light period due to excess algae growth. 12 hours is too long i know! I have had these lights oner my tank for about 3 weeks now.
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Old 04-01-2014, 01:45 AM   #2
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I have 120 watt ebay lights. I run mine blue 90% 7am-10pm white 40% 10 am to 7pm. Long light period with little to no algae growth in display. Algae shows you have an issue with nutrients not lighting. Cutting back lighting will only slow it's growth. You need to cut back on feeding and increase water changes and/or filtration.

Edit: oh and I have the blue white only. Not "full spectrum"
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Old 04-01-2014, 07:50 AM   #3
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I just odered some a couple days ago they must be on the way. Maybe your old bulbs were finished and allowed algae to grow and when you added the leds, the algue just bloomed. Im scared of this to happen in my tank. I think if you lower the intensity and cut your lightning time to 6 hours it should go better. Did you have algae before you set up the leds or did you notice them after?
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Old 04-01-2014, 09:00 AM   #4
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It's been a little more lately. It's like an orange diatom type algae. You won't regret the light fixture
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Old 04-01-2014, 10:28 AM   #5
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Quote:
Originally Posted by Dav3 View Post
I have 120 watt ebay lights. I run mine blue 90% 7am-10pm white 40% 10 am to 7pm. Long light period with little to no algae growth in display. Algae shows you have an issue with nutrients not lighting. Cutting back lighting will only slow it's growth. You need to cut back on feeding and increase water changes and/or filtration.

Edit: oh and I have the blue white only. Not "full spectrum"

I only feed 2 times a week, and unfortunately the LFS do not have good RO/DI water. And I perform water changes of 25% every 2 weeks
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Old 04-01-2014, 12:44 PM   #6
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Do you have another lfs you can get rodi water from? Perhaps you need to invest in your rodi filter.

If the water going in has nitrates and phosphates then water changes won't help.
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Old 04-01-2014, 12:58 PM   #7
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Do you have another lfs you can get rodi water from? Perhaps you need to invest in your rodi filter.

If the water going in has nitrates and phosphates then water changes won't help.

So it's probably my top off water that's providing those excess nutrients
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Old 04-01-2014, 01:03 PM   #8
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This is the only place that algae is at
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Old 04-01-2014, 01:08 PM   #9
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Here it is again if you can't see the first one.
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Old 04-01-2014, 01:16 PM   #10
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If it is only showing up in that spot try increasing flow there.
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