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12/26/2009, 09:18 PM | #1 |
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Why is my sand turning red??
My sand is starting to turn red. It resembles diatoms in that it looks like a red dust. When I turn the lights off it seems to go away however, when the lights come on it comes back. Is this cyano and what do I do about it?
Im hoping its a water flow issue.(I dont have any powerheads yet) |
12/26/2009, 09:22 PM | #2 |
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my guess is cyano, get some flow going and it should go away
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12/26/2009, 09:25 PM | #3 |
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Yup, sounds like Cyano bacteria. Flow is just a band aid for it, you really need to look at what is fueling it and try to eliminate its food source. To rid your tank of cyano its best to reduce feeding, increase water changes, keep your nitrates low and add a phosphate reducer. It is primarily fueled by phosphates IME but the others are also contributing factors. Also keep in mind that some foods are higher in phosphates than others.
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12/26/2009, 09:28 PM | #4 | |
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Quote:
just out of curiosity what foods are higher in phosphate
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12/26/2009, 09:28 PM | #5 |
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Are you running a skimmer?
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12/26/2009, 09:31 PM | #6 |
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From what I understand,frozen mysis,especially the PE stuff is high in phosphates.Some of my reefer buds rinse the mysis with ro in a brine net before feeding.
Personally,I think any organics that's not extracted from the water and settles to the bottom can fuel cyano.
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12/26/2009, 09:34 PM | #7 |
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Yes running a skimmer, a gfo reactor, and do 25 gallon water changes every two weeks. I tried the lights out trick for a few days and it came back.
Currently I do not have a phosphate test. My LFS tested it and it did have a little, that was before the gfo reactor install though. |
12/26/2009, 09:35 PM | #8 |
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Just missed your post on the mysis. I do feed a very small amount of pe mysis about every other day. I havent been rinsing it.
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12/26/2009, 09:41 PM | #9 | |
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Quote:
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12/26/2009, 09:43 PM | #10 |
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No, mysis is the only frozen I feed at this time. I have wondered about the liquid that comes with it. Could that be a contributor to the phosphate?
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12/26/2009, 09:47 PM | #11 | |
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Quote:
Some of my fellow reefers have thawed some in tank water and tested the phosphates on a Hanna tester and found it extremely high.
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12/26/2009, 09:51 PM | #12 |
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1. I will start rinsing the mysis.
2. Need more water flow. (powerheads) Been trying to talk myself into the Vortechs anyway Cha-ching!!!! |
12/26/2009, 09:53 PM | #13 |
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Forgot to ask, since this is only in my sand at the moment, should I vacuum the sand when I do water changes?
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12/26/2009, 10:01 PM | #14 | |
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Quote:
I used to reach in and roll it all into one big pile,then scoop it out. Siphoning can be a hassle as you might get a lot of the substrate.Also if you try a small tube it will get plugged often as does a turkey baster. I find that having a over sized an well maintained skimmer is your best friend when it comes to cyano.
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12/26/2009, 10:23 PM | #15 |
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Check out post #9 by Randy. Its got a great list and a link as well.
http://www.reefcentral.com/forums/sh....php?t=1471874 |
12/26/2009, 11:10 PM | #16 |
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I would disagree that flow is just a bandaid only because it is highly unlikely that you are actually going to truly be able to run zero phosphates if you are really ever feeding the tank. Of course there is overfeeding so if you have a TON of it showing up that is probably the case but I have found that it shows up in stagnant spots quite frequently even when all params are in check and the rest of the tank looks fine.
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12/27/2009, 01:00 AM | #17 |
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I think a light siphoning of the cyano helps. Yes it will grow back unless you find the cause, but it does help to remove it. If you use large plastic tubing, it comes up and you can easily not get too much gravel/sand with it.
1+ in rinsing the mysis. There is really no down side to rinsing. |
12/27/2009, 07:27 AM | #18 |
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I agree that flow helps but will not abate the problem. I have 2 K3's and a K4 in a 75 and still had the problem. I purchased a bigger skimmer and switched lighting from 15K MH to 20K MH and within a week it was gone. All other factors remained the same so I had to conclude it was that combo but more so the lights. The new skimmer was up and running for 3 weeks before the lighting change.
All tanks are different so you'll need to experiment with the combo's everyone has suggested. This problem can be frustrating but can be beaten.
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12/27/2009, 08:57 AM | #19 |
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Thats another thing I forgot. One of my actinic bulbs bit the dust when all of this started. Could that have anything to do with it?
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12/27/2009, 10:22 AM | #20 |
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I'm in your boat as well. I have 2,050 gallons per hour of tank turnover in my 40 breeder, brand new T5 bulbs, eshopps skimmer that I am having to dump every 3 days, a phosphate reactor running phosban, and an assortment of snails, lawnmower blenny and an urchin.
With all of the above I went from hair algea straight to cyano. I do a rodi water change of 10 gallons or 25% every 4-5 days with my zero tds unit and I siphon the cyano off the substrate and within 24 hours it's back. I feed a pea size of mysis shrimp daily and it never hits the ground from my fish inhaling it. |
12/27/2009, 10:23 AM | #21 |
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What's sad is my 10 gallon nano I'm watching
cycle appears 1000x more stable then my 40 gallon. |
12/27/2009, 11:08 AM | #22 |
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yes, the dead bulb may play a rold
Yes, the dead buld may be part of it. If you replace it that should help and since you probably need to do that anyway, why not?
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12/27/2009, 11:34 AM | #23 |
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what they said^^^^. if the algae comes and goes with the lights then the bulbs are out of spectrum
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