shaywood Posted October 23, 2009 Share Posted October 23, 2009 Everything looked great in my tank last night. Woke up this morning and the entire tank is white foggy. I found a large clump of Halimeda that has turned white. Call corals still have great color and the fish are fine. Other Halimeda is green. Any ideas? Is it possible that a clump can just die? I tested all parameters (see below) which look ok. Or, is it possible that my corals spawned? Quote Link to comment Share on other sites More sharing options...
Michael7979 Posted October 23, 2009 Share Posted October 23, 2009 Sounds like it went asexual. 1 Quote Link to comment Share on other sites More sharing options...
Isaac Posted October 23, 2009 Share Posted October 23, 2009 That would be my guess too. 1 Quote Link to comment Share on other sites More sharing options...
SquishyDuck Posted October 23, 2009 Share Posted October 23, 2009 Yup. Found an interesting article on Halimeda. Toward bottom it discusses its reproductive habits: http://reefkeeping.com/issues/2004-04/nftt/index.php 1 Quote Link to comment Share on other sites More sharing options...
reefboy Posted October 23, 2009 Share Posted October 23, 2009 Sounds like it went asexual. yep and if your filtration didn't pull it all you could see new patches pop up I had this algae at one time and it would do this I finally had to pull it has it was spreading through out my systems because they were attached lol. Quote Link to comment Share on other sites More sharing options...
shaywood Posted October 23, 2009 Author Share Posted October 23, 2009 I'm doing some water changes now and pulled the halimeda out. My acan and my brain don't seem to be liking what is going on. THey look like they are secreting. Quote Link to comment Share on other sites More sharing options...
Jay Posted October 25, 2009 Share Posted October 25, 2009 Add some new carbon and get your skimmer pulling wet foam. I have a whole bunch of halmedia in my tank and this has never happened to me. Jay Quote Link to comment Share on other sites More sharing options...
JManrow Posted October 25, 2009 Share Posted October 25, 2009 Check your Ca And KH. Release of gametes is usually not an issue with non-Caulerpa macroalgaes. Halimeda needs a fair amount of Calcium to thrive. Jay has given some excellent advice. It is difficult to say what may be the exact cause of the crash. Quote Link to comment Share on other sites More sharing options...
Jay Posted October 26, 2009 Share Posted October 26, 2009 My Halimeda went nuts when I fired upmy Cal reactor. I had overshot the alk to 16 dkh. Ever since then I have this crud growing out of control when I run the reactor. I even shut down the reactor recently because I was tired of pulling the Halimeda. I have been reading on wetweb to see if I can find out which element other then cal/alk causes it to thrive. I am suspecting that low mag may help it along as mine is always low it seems. Jay As far as the white Halimeda goes mine turns white every night when the lights are off.I read where the stuff that makes it green durring the photo period withdraws into the tissue when its dark. Read that somewhere. But if you have a big white clump I would not think that has anything to do with cloudy water. I would suspect something else like a anemone spawn to cause this cloudy water while the dead Halimeda is coincidence. Just my opinion though. Quote Link to comment Share on other sites More sharing options...
Lowman Posted October 26, 2009 Share Posted October 26, 2009 I agree with Jay here. My Halimeda went nuts when I fired upmy Cal reactor. I had overshot the alk to 16 dkh. Ever since then I have this crud growing out of control when I run the reactor. I even shut down the reactor recently because I was tired of pulling the Halimeda. I have been reading on wetweb to see if I can find out which element other then cal/alk causes it to thrive. I am suspecting that low mag may help it along as mine is always low it seems. Jay As far as the white Halimeda goes mine turns white every night when the lights are off.I read where the stuff that makes it green durring the photo period withdraws into the tissue when its dark. Read that somewhere. But if you have a big white clump I would not think that has anything to do with cloudy water. I would suspect something else like a anemone spawn to cause this cloudy water while the dead Halimeda is coincidence. Just my opinion though. Quote Link to comment Share on other sites More sharing options...
Rick Posted October 26, 2009 Share Posted October 26, 2009 ....I even shut down the reactor recently because I was tired of pulling the Halimeda..... Let me know when your ready to pull some more. My calcium went high (600) after the tank swap which in turn pushed the alk low which pretty much cleaned out what I had left. They are pretty much balanced back out now. Quote Link to comment Share on other sites More sharing options...
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