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Old 05-11-2013, 10:43 AM   #1
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Is this coralline



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Old 05-11-2013, 05:57 PM   #2
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Does it come off if you touch it? If so then it's not coralline. That combination of dark purple and neon green looks more like Cyanobacteria.
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Old 05-11-2013, 06:39 PM   #3
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Does it come off if you touch it? If so then it's not coralline. That combination of dark purple and neon green looks more like Cyanobacteria.
Is Cyanobacteria bad
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Old 05-11-2013, 07:16 PM   #4
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The first pic it's hard to tell. Theres dark red coralline in my tank that looks kind of like that. Just like what erich said, if it's slimy and comes off, it's cyano. Cyano is considered bad because it can grow quickly and cover corals. It's also means poor water quality. Common in new tanks though. The other pics look like whatever it is was part of the rock as in it doesn't really look like algae, but I don't really know.
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Old 05-11-2013, 07:24 PM   #5
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I don't under stand how it entered the tank because I recently did a test yesterday for my parameters ph was 8.0 nitrite 0 ammonia 0 and nitrate a little high cant remember but I usually do a change every week and today is the change day so I will check and see what is and report too you guys
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Old 05-11-2013, 07:30 PM   #6
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Cyano can come from rock or on frag plugs. Cyano feeds off of phosphates and likes low flow. Even a little phosphate from your water source would create a bloom. Do you know how much TDS is in your water or rather what water are you using?

Edit: forgot that there's also phosphates in some fish food.
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Old 05-11-2013, 08:00 PM   #7
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Cyano can come from rock or on frag plugs. Cyano feeds off of phosphates and likes low flow. Even a little phosphate from your water source would create a bloom. Do you know how much TDS is in your water or rather what water are you using?

Edit: forgot that there's also phosphates in some fish food.
I use regular tap but I use thing like stress cost to take out the chemicals before I add it in my tank. I heard or rodi water but I really don't understand about it and I am relatively young so I wouldn't have a big budget
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Old 05-11-2013, 08:18 PM   #8
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I just checked and some seems to come off easily but other pieces not so easy I will scrub the rock and do a regular change and wait for the crabs I orders too come.any other advice would be help full
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Old 05-11-2013, 08:40 PM   #9
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Do the water change and scrub the rocks in the bucket not in the tank it will spread if you scrub it in the tank. It will be a tough battle using tap water.
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Old 05-11-2013, 08:45 PM   #10
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I you can stretch it at all to even use distilled water over tap that would help. Also, how much and how often do you feed? Cyano is caused by excess nutrients in the water, too much food, sometimes too much/long lights. I don't believe crabs are going to eat cyano but they might take care of any green or hair algae
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