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Old 07-10-2005, 05:54 PM   #1
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tough bright green algae

Hey all,
I am getting rid of my cyano, but i have this bright, almost neon algae that is stuck on the glass. I mean i cant get this stuff off. I even took the scrubber part of the mag-float and was at it for about five minutes, but it wouldnt come off. it is covered all of the edges of the tank and a few spots on the back. What is this stuff. These are the recent events in my tank. Three days ago i have been doing daily water changes w/ IO; i put in my first doses of calcium and supplements with Kent Marine Nano Reef.

TIA
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30 gallon SW tank;EHEIM ECCO 2235 Canister Filter w/Miracle-Working Chemi-Pure
TetraTec UV1 UV Sterilizer;Rio 50 Powerhead ;130w PC lighting;33 Lbs. of Tonga Branch LR;Nature's Ocean Live Sand (the bagged stuff)
Livestock:2-Ocellaris Clownfish;9-Scarlet Reef Hermit Crabs;1-Regal Tang;Zoanthids, Pineapple Brain coral, Sebae Anemone, Colt Coral, Galaxea
Tank Specs as of December 29, 2005:Ammonia:0;Nitrite: 0;Nitrate=0;Cu:0
PH: 8.3
SG: 1.028;Temp: 79-84 degrees F (Adjusts throughout the day)
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Old 07-10-2005, 06:16 PM   #2
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It is green coralline algae (calcerous algae). It is GOOD sign. Usually this happens to me before I get an explosion of purple coralline.
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Old 07-10-2005, 06:46 PM   #3
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but how come this is happening after two years of my tank running. Did the rise in calcium do it? This stuff was under the cyano. If it is coralline, how long should it take to become purple?
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30 gallon SW tank;EHEIM ECCO 2235 Canister Filter w/Miracle-Working Chemi-Pure
TetraTec UV1 UV Sterilizer;Rio 50 Powerhead ;130w PC lighting;33 Lbs. of Tonga Branch LR;Nature's Ocean Live Sand (the bagged stuff)
Livestock:2-Ocellaris Clownfish;9-Scarlet Reef Hermit Crabs;1-Regal Tang;Zoanthids, Pineapple Brain coral, Sebae Anemone, Colt Coral, Galaxea
Tank Specs as of December 29, 2005:Ammonia:0;Nitrite: 0;Nitrate=0;Cu:0
PH: 8.3
SG: 1.028;Temp: 79-84 degrees F (Adjusts throughout the day)
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Old 07-10-2005, 06:59 PM   #4
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Here are some pictures of the algae. Sorry, they might be a bit grainy. Firewire's not at its full potential these days. But you could make out that neon green color. Is this the same stuff you have before you got coralline?
Attached Images
File Type: jpg algae_004_0002.jpg (16.3 KB, 218 views)
File Type: jpg algae_004_0001.jpg (16.1 KB, 186 views)
File Type: jpg algae_003_0001.jpg (11.9 KB, 183 views)
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30 gallon SW tank;EHEIM ECCO 2235 Canister Filter w/Miracle-Working Chemi-Pure
TetraTec UV1 UV Sterilizer;Rio 50 Powerhead ;130w PC lighting;33 Lbs. of Tonga Branch LR;Nature's Ocean Live Sand (the bagged stuff)
Livestock:2-Ocellaris Clownfish;9-Scarlet Reef Hermit Crabs;1-Regal Tang;Zoanthids, Pineapple Brain coral, Sebae Anemone, Colt Coral, Galaxea
Tank Specs as of December 29, 2005:Ammonia:0;Nitrite: 0;Nitrate=0;Cu:0
PH: 8.3
SG: 1.028;Temp: 79-84 degrees F (Adjusts throughout the day)
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Old 07-10-2005, 10:18 PM   #5
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If water parameters are not right, coralline algae will not grow so it is very possible to just start seeing this after 2 years. It is a calcerous algae so it needs proper levels of both calcium and alkalinity to grow. It takes the calcium (Ca++) and alkalinity (CO3-) from the water and lays down calcium carbonate (Ca(C03)2)...this is why it is extremely difficult to remove.
Phosphates can greatly inhibit the growth of calcerous organisms, including coralline algae. So if your phosphates had been high and now are low, a coralline explosion could have resulted. Adding the calcium supplement could have also encouraged this stuff to go. HTH
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Old 07-10-2005, 10:19 PM   #6
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Yes this is exactly the same stuff I get before an explosion in purple coralline. From my experience, this stuff will eventually turn all purple.
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