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Old 02-07-2011, 11:21 PM   #1
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I think this is cyano on the substrate. Does anyone know why it is there? My readings are:
Ammonia 0
Nitrite 0
Nitrate 4-5
pH 8.4
I have been feeding sparingly twice a week. Lights are on about 10-11 hours a day.

My camera is really faded, so there is more than it looks like.
Thanks.
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Old 02-08-2011, 01:49 AM   #2
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It sure is. How old is the tank? If you don't have corals, you can cut the lights to 2-6hrs a day. And a 30-40% pwc should help. If you have the test, check your phosphates, it is amazing what just a small amount can cause, phosphate, slow or no water movement, and the length of time the lights are on are the main factors for pest algae like this. Nitrate is as well, but those are the main 3 causes.
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Old 02-08-2011, 03:37 AM   #3
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I would adjust powerheads a little and cut back on light... you should be able to feed every other day
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Old 02-08-2011, 03:40 AM   #4
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I do have some soft corals and anemones, so I can't reduce light much. I suppose what I will try is a phosphate test, reduce light to 9 hours for a bit, and a pwc.

Do you recommend a good brand of water mover? It is a 29 gallon tank. I have two petsmart brand powerheads and a biowheel filter. I don't like how the powerheads work though, I would rather have the ones that look like turbines (don't know what they are called though).

Thank you for responding.
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Old 02-08-2011, 03:44 AM   #5
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Quote:
Originally Posted by Hinds04
I would adjust powerheads a little and cut back on light... you should be able to feed every other day
I have been thinking that twice a week was too little. I will try every other day. Thanks.
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Old 02-08-2011, 12:05 PM   #6
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Koralia by Hydor
Amazon.com: koralia
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Old 02-08-2011, 01:52 PM   #7
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Koralia by Hydor
Amazon.com: koralia
Hey thanks, that is exactly what I am looking for.
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Old 02-08-2011, 03:09 PM   #8
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are you using RO/DI water?
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Old 02-08-2011, 03:32 PM   #9
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Start by reading this first.

Cyanobacteria, AKA Red Slime Algae
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Old 02-08-2011, 04:00 PM   #10
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Quote:
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are you using RO/DI water?
Yes
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