Algae ID

is this GHA? looks like it to me. I am trying to get it under control.

 

Looks like GHA. What are your Mag, Alk, and Calcium at? This can play a big part in keeping algae under control.
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I dont know what the mag or alk are at, I dont have a test for them. cal was at 420 all other lvls were at 0 other than nitrate which is at 20ppm.

 

how old is the tank? I only ask b/c it looks half new and half old. THinking you might have just got some live rock that has a lot of organics to cycle through maybe...is that the case?

 

looks like turf algae (derebesia) the same stuff my tank is plagued with.

 

This tank is an upgrade from a 30 gallon. so far my tank doesnt seem to even look at this algae. this 75 has been running for 4 weeks

 

did you mean tang?
mine nibbles at it but really doesn't make a dent. I got some fuzzy chitons from reef cleaners and they love the stuff. they are the only ones that have made a dent in this stuff snails just graze over it.the chitons devour it of the rock.
also a good way to remove as much as you can is take a pair of tweezers and yank out clumps , just make sure you get it out of the tank before releasing the tweezers then repeat.
also raising mag hasn't worked with this stuff or alk.

also here is a link where JohnMaloney id'd this stuff for me.
http://www.3reef.com/forums/algae/need-id-algae-61002.html

 

yes I did mean tang...lol but when it gets long enough it does look just like hair. but it doesnt seem like the pictures of GHA either. I can say it is starting to choke out the tube worm colonie around it.

 

yeah it has stages where it looks like small tubes of bubble algae then it looks like moss. if you don't get it under control it will chock you rocks and coral look at my tank thread you can see it.(that's after I cleaned the rocks).