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post #1 of 5 Old 02-19-2009, 06:04 PM Thread Starter
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Exclamation OneFish, Cody, Help plz.

I was wondering if upgrading to new lights can cause a Diatoms?

I have a 12g FOWLR I am making to a small reef tank it has been up about 5 years and I just replaced the stock light with a 15w 50/50 bulb 2 days ago until my new coralife pc quad light comes, (due tomorrow, Fri.20th) in since hubby did bring home a Kenya tree coral a few days ago.. wish he would have waited but what's done is done.

It's just today I noticed some diatoms on a few pieces of my LR which is odd since the tank has been up for years I thought maybe since I replaced the old stock light with the 50/50 that might have caused it. I also found that he put in a small piece of LR about 1lb or so which I am worried might not have been fully cured from the LFS. Do you think the diatoms is from the new light or the small piece of lR or maybe a combo of both.

All is well with Trites and PH but did notice a slight increase in my Ammno.( between 0-.25 and my trates are up to about 25-03 . Do you think I might be going through a Mini cycle and how long do you think it might take since the tank has been set up for almost 5 years. I am mixing a 20% WC righy now and will be able to do the change in the AM before my new PC lights come in.

any help with this would be great. Thanks
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post #2 of 5 Old 02-19-2009, 07:37 PM
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The small cycle shouldn't last long. I can't say how long, though.

I would *think* it is a combination of both. I have heard of diatoms being seen in a switch of lights, but IMO it would be the rock. As you may know, diatoms are generally created from silicates. I would think the rock had some different salinity thing, and that is what you are seeing. But that may be a complete guess.

Are you seeing a ton of diatoms, or just a few?
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post #3 of 5 Old 02-19-2009, 07:48 PM Thread Starter
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Cody, I am just seeing a small amount nothing to bad so far. On the piece of LR he added to the tank and a small patch on the LR beside it. I posted a thead about Purigen and Chemi Pure and Chemie pure Elite, do you know of this stuff or use it, thought about ordering it tonight.
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post #4 of 5 Old 02-20-2009, 02:58 PM
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I'd say that it's from the LR that you got. It wasn't all the way cured. I wouldn't personally use the chemicals, This should be only a temporary thing in your tank. Once the Rock has finished it's little cycle it should go away.

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post #5 of 5 Old 02-20-2009, 04:19 PM
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agree.
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