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Old 03-11-2006, 11:29 AM   #1
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Is this diatom, or what?

This may sound like a silly question, but since I only recently heard the word 'diatom' in recent months, and most of the descriptions I've read are that it is a brown color. Mine is more rusty-red/brown.
If this is diatom, which is thick into this patch of sand only, will sucking it out with a syphen hose control it ok, or is it too late and I'll need to take other steps?
Thanks in advance!
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Old 03-11-2006, 12:56 PM   #2
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Looks like cyano to me. Syphoning it out with airline tubing will help but you need to address the issues causing it. Excess nutrients in your water. Doing extra water changes will help. As will replacing old bulbs, feeding less, addition of extra water flow, etc. There is an article on cyanobacteria in AA's article section. I've posted the link for you. If it is diatoms, it will be powdery and it will die out on it's own over time. Cyano is slimy and kinda lays in sheets.


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Old 03-11-2006, 01:15 PM   #3
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Thanks Fluff!
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Old 03-11-2006, 01:51 PM   #4
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Cant get any better advice than that
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Old 03-11-2006, 07:52 PM   #5
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have you checked your water for phosphates? that is the main food source for cyno.
touch it and see if its slimy, if it is its cyno. Check your top off water for phosphates and new SW for it also, doing water changes with water that contains PO4 is just feeding the problem.
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