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Old 06-28-2007, 03:10 PM   #1
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Outrageous Macroalgae Problem

Hey guys, I'm having a huge, huge, huge bryopsis outbreak in my tank. Just goes to show you what can show up micrscopically on dryed out liverock. When I upgraded to my 45 gallon, I bought 30 more pounds of liverock from liveaquaria...I was pretty dissapointed that the rock was pretty much dry. A few MONTHS after I have it in my tank, I get an outbreak of, at first, slow growing macro, then it exploded. It's growing inbetwen my sps corals, on my equipment....everywhere.

I've been trying to combat it with wetter skimming, more frequent water changes, phosban and carbon. Going to order a canister and lots of purigen soon as I can afford it. But nothing stops this stuff. It's getting very, very annoying.

I've read about increasing Magnesium levels...is there any truth behind that?

Water parameters are pretty much excellent.
0 NH3
0 NO2
<5 NO3
8.3 pH
470 Ca
~ 14 dKh
0 PO4

So here is my question(s). Will taking it out and scrubbing the rock get rid of the macro? Will it kill the goodies on my liverock? I don't want to cause another cycle by scrubbing off too much stuff. I want to aquascape anyways, so it's a good excuse, but I'm worried. I want to kill the algae without killing my fish and corals. Just looking for some reassurance or ideas.

Thanks for the help.
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Old 06-28-2007, 03:37 PM   #2
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You can try to scrape it off in another bucket just rinse it well. I would probably use PWC water. I have read some urchins will eat it. You could also add a UV to help keep the water clean. But watch out for pencils, tuxedos and even pincushions. About the only option left is the long spined, since they don't wedge (pencil) or carry things around (pincushion, tuxedo). I have seen both my pencil and pincushion mow down hair algae. I think there are some snails that might eat it too. Of course, you know the natural way is really the best way to go. Less light, food, PWCs and such.....
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Old 06-28-2007, 04:25 PM   #3
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I have http://www.drsfostersmith.com/Produc...&N=2004+113778 for a uv unit.

I just have to pick up some tubeing to hook it up to a small ph i finaly got.

sounded like a good unit to me.
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Old 06-28-2007, 05:17 PM   #4
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I dont see anything wrong with scrubbing it Lindsay. If you scrub it in SW then you should not have any die off. That would be my suggestion.
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Old 06-28-2007, 06:47 PM   #5
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The only thing I can think of when scrubbing doesnt work is to cook the rock and let it die off.. It is easy to do but takes a few weeks to do
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Old 06-28-2007, 07:30 PM   #6
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A UV will only kill free floating algae so IMO it will do nothing for HA.. I know a few guys in the my reef club had it bad and they tried just about everything you mentioned and had no luck. One guy used AZNO3 and it killed it dead.. The other tossed the LR and get new rock and has not had it come back.
We talked about it and we figured that the LR releases stored up nutrients to fuel the HA and doing water changes does nothing because its coming from the LR. Again its just out take on things.
Good luck with the long battle..
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Old 06-28-2007, 07:59 PM   #7
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Manual removal will be your best bet. It is a PITB but will give you the fastest results. Time it around water change time and sue the water taken from the tank to scrub the LR in.
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Old 06-29-2007, 01:00 AM   #8
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Thanks for the replies everyone, I'll get a pic tommorow to show you just how bad it is.

Scott, I've got urchins, snails, hermit crabs, conchs, etc. NOTHING touches this stuff. Argh. Thanks for the suggestions though. My urchin only likes eating my coraline and nothing else.

mad, thanks. Thought about a UV unit, but they sound like more work than I want. I'll have to think about it more.

Mike, Sadie, Lando, thanks. I figured scrubbing would be my best bet, but I didn't want to scrub TOO much. The rock is fairly covered in this crap. Rinsing in PWC water sounds like a great idea, now I just gotta get another rubbermaid for LR scrubbing. hehe.

seaham, what is AZNO3? Thanks for the thoughts. This liverock is new, so I don't think it is the problem, however I could be wrong. The majority of this rock though I've had for a few years, but I've never had a macro outbreak this bad before. It's not Hair Algae, much much worse, hehe.

Thanks again everyone... I'll try scrubbing and see if that helps at all.
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Old 06-29-2007, 09:54 AM   #9
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Just do a quick google for it and tons of info pops up..

http://www.marinedepot.com/aquarium_...o3.asp?CartId=

the Algae is getting food somewhere, either your water or the LR cut the food and the algae will die hopefully.

Try scrubbing and see if that helps, if not you can nuke the stuff. I'm not one to just add stuff to a tank, but when you try everything else chemicals can help.

The rock is new to you, not the world, so who know what type of environment it was in before??
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Old 06-29-2007, 10:58 AM   #10
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Quote:
Originally Posted by seaham358
A UV will only kill free floating algae so IMO it will do nothing for HA.
I totally agree that it will kill ONLY (not yelling) the free floating spores, I should have mentioned that, so thanks for bringing that up.
Lindsay, keep us updated.
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