ID alage
 

this is the first time i see this kinda alage in my tank they have been growing in the back of my cube tank and the power head
http://i1053.photobucket.com/albums/...g/P1040014.jpg

It looks like Cyano bacteria and bryopsis.

Looks like turf algae to me but I haven't personally seen it growing on glass.

looks like bryopsis to me as well, nasty stuff to get rid of.

just want to know is this bad for my tank or good ?

yup sure is +1

bad.....if you didnt add it its a good chance you dont want it;)

oh okay thanks
how should i get rid of em ?
any good tools ?

you can manually scrape whats on the glass removing it , but it will come back ..its a water quality issue.....prob overfeeding or lack of waterchanges/proper filtration...too high a bioload etc. etc. etc.

if you remove whats there and lower your phosphates it will dissappear as the tank ages