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Old 09-05-2013, 06:47 PM   #1
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Light on or off in refugium

Hello I was wondering if I should leave the light on all the time in my sump/refugium and also why am I getting brown algae all over in my refugium it all over my sand bed and now it's starting on my glass
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Old 09-05-2013, 06:53 PM   #2
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One of the main attractions to a sump is the ability to grow algae down there to consume nitrates/phosphates. Of course we would prefer it to be the easier to manage Cheato algae, but really, any algae works. Are you sure it's not diatoms forming? I had them on the glass as well when my tank was first set up.
I run my lights for 20 hrs, off for 4 hours during the day.
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Old 09-05-2013, 07:03 PM   #3
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I run my refug light from 6p-4a. Everything down there seems happy. When no one is home I try to leave cabinet open for good are flow. Hope this helps.
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Old 09-05-2013, 07:04 PM   #4
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I think it is diatoms if it is what do I do about it if anything
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Old 09-05-2013, 07:06 PM   #5
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My DT is about 9 months old and my sump is less than a week
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Old 09-05-2013, 07:08 PM   #6
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Quote:
Originally Posted by Spechty37 View Post
I think it is diatoms if it is what do I do about it if anything
Diatoms can be cause be a number of things, bad bulbs, not enough circulation, tap water, just depends. Good luck. Hope you get to the bottom of it.
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Old 09-05-2013, 07:12 PM   #7
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I figured tap water I'm 99 percent sure that's what it is I just ordered a ro/di should be here in about 4 or 5 days and then another couple days to hook it up and get some good water thank you
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Old 09-05-2013, 07:19 PM   #8
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That's usually the #1 cause. I buy premixed saltwater and rodi water from my lfs. They have 1/2 off Fridays. Cheaper than me mixing my own water.
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Old 09-05-2013, 07:24 PM   #9
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Maybe I will buy water for my top off until I get my filter thanks
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Old 09-05-2013, 07:30 PM   #10
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Diatoms are caused by silicates. chances are it comes from the sand, and will eventually be consumed by the diatoms (which are in turn consumed by the CUC). I seriously doubt you have sicates in your water. It will go away over time (a few months)
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