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Old 04-13-2013, 07:11 PM   #1
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Help

What is the red stuff on my love rock?
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Old 04-13-2013, 07:30 PM   #2
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Cyanobacteria, not good.
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Old 04-13-2013, 07:47 PM   #3
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The lfs said it was coralline
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Old 04-13-2013, 07:50 PM   #4
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Quote:
Originally Posted by TheGrapeApe View Post
The lfs said it was coralline
Looks like coralline to me Too.....
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Old 04-13-2013, 08:50 PM   #5
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If its like a carpet and comes off the rock when you swish your hand over it then its Cyano, if It's hard and doesn't come off with the swish test It's coraline. Cyano is caused by excess nutrients, low flow, high light. It's primary source of nutrients are phosphates.
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Old 04-23-2013, 11:17 PM   #6
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I have red and brown everywhere... How do you get rid of it?? I suck it out and it spreads worse...
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Old 04-24-2013, 01:10 AM   #7
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Like apet66 says it is Cyano if it comes off easily. Remove rocks and clean it with tooth brush using water from tank. No tooth paste please kd lol
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Old 04-24-2013, 09:31 AM   #8
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I have 300 lbs of rock.. Do I really have to take it out?? Lol...
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Old 04-24-2013, 10:08 AM   #9
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Take some flexible airline tubing and siphon it off the rocks and sand. You may loose a little sand in the process though. You can attach a long piece of rigid plastic airline tube to the end of the flexible tubing and use it as a wand. Keeps your hands out of the water.
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Old 04-24-2013, 10:21 AM   #10
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That's a good idea! Thanks! I know with the actual gravel vac it doesn't have enough pressure to suck it all the way up. It just floats and drops back down
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