How could I get rid of Grape Macro Algae!
 

I am really ****ed of , I remove the rock and scraped it even washed it with fresh water but they came back again :( I really dont know what to do, I search in the forums but could not find anything useful , some people like this stuff and even fish store sell it! but I dont like them , they grow really fast and take over the hole tank.

http://i735.photobucket.com/albums/w...3/d86dea24.jpg

control your nutrients first and algae second.

do you test for nitrate or phosphate?
what size is the tank and what skimmer do you run?

Everything is under control the water chemistry is perfect , this is my only issue and it is not related to water chemistry

well, science might argue with you.
if you didn't have excess nutrients in your system, the algae would starve.

what test kit do you use for your phosphate?


Just saw this post of yours from a thread on the 11th...

My Tank is ReaSea MAX 34G, and I have only 5 small fish and corals.
My protein skimmer died 2 month ago but tank were running just fine without protein skimmer.

I would guess a lack of skimmer would be your most likely reason for this algae bloom.
If you're not running a skimmer, weekly 10% water changes should also do the trick.

I use API its something between 0 to .25

You must of missed this one..........this is my question and responses. :biggrin:

http://www.canreef.com/vbulletin/showthread.php?t=76792

I did not missed that, I did brush the rock, but the came back after a week

You won't have readable measurements if the algae is utilizing the phosphates.

I had a major problem with the same alae in our SPS tank at the store. We pilled it out daily, tried emerald crabs, and tangs & foxfaces. As long as the roots are still in place, it comes back very fast.

The solution I came up with is the following;
1 - pick off as much as you can
2 - Soak it in HOt (not boiling water) for about 3 minutes
3 - scrub the rock
4 - let the residue dry a bit, then rinse in salt water

we havent had the problem since.

Ask Bean, I had her scrubbing with me most of the day.

Ken - BWA

Thanks for the advise ,the problem is the rock is covered with blue mushrooms and I dont want to kill them. I poll them as mush as I can every couple days but these things are really fast grow, currently they are only on one rock.
my emerald carb dosent toch them and I cant have tang in 34gallon :( and I cant boil the rock and kill all the mushrooms thats way I really dont know what todo ,
My LSF told me they are beneficial for the tank and people buy these algae from them and they have some in their Show tank !

But I just want them out of my tank :(