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Old 08-12-2011, 11:33 PM   #1
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cyano..algae.. not sure

Ok so for quite some time I been battling this issue on my sand bed as you see in the picture. In the beginning my phosphates were 0.25 and nitrates 0. But since then I have added a phosban reactor. Now Phosphate 0 nitrate 0. All other parameters test good. My question is.. other then phosphate and nitrates, what else can cause something like this on my sand bed. I have posted previously on this issue and I was advised that it was my phosphate which are now at zero. Any ideas
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Old 08-12-2011, 11:34 PM   #2
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forgot to add the photo. Here it is. Its from my cell phone so it looks a little funny
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Old 08-12-2011, 11:50 PM   #3
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How old is your tank? Looks like diatoms.
Doesn't look like cyano.

I'm no expert, though.
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Old 08-12-2011, 11:58 PM   #4
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About year and a half now. And all parameters I can test for good
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Old 08-13-2011, 01:01 AM   #5
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It looks like rust.. I am not sure what can cause this stuff other then phosphates and nitrates which are at zero.
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Old 08-13-2011, 01:46 AM   #6
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Looks like brown algae to me.
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Old 08-13-2011, 01:47 AM   #7
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Are youre lights dim... Inadequate lights can cause this.
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Old 08-13-2011, 01:50 AM   #8
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I use a four bulb t5 and run them for only 5 and half hours. The bulbs are around 4 months old.
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Old 08-13-2011, 02:00 AM   #9
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Hmm some ppl say increase lighting time to help with brown algae. It doesn't like light. Water changes will help too.

I am on the winning end of a green water problem right now. It's frustrating.
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Old 08-13-2011, 01:36 PM   #10
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Quote:
Originally Posted by Jereli
I use a four bulb t5 and run them for only 5 and half hours. The bulbs are around 4 months old.
You need to have at least 8 eight hours of light from your daylight bulbs,looks like your clam is definitely not getting enough light.Increase the lighting and move him higher in the tank or you will lose him.Check your water flow,that could be part of the problem to.
IMO
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