Algae ID

[jejton]

My cyano finally seems to be subsiding, at least to the point where its controllable but I have two new algaes growing in my tank now. The first might be a macro, but I'm not sure. It started growing on my overflow teeth a few weeks ago and only recently have I noticed a small patch on piece of rock and on my snails' shells. It is green and looks like miniature bipennete ( symetrical with the the long part going down the middle and equal short parts - I forget the proper names - sticking out the side at an angle ). I cant get a good enough shot so I wont bother. The second algae is just a greenish string like growth. It sometimes grows in patches - mostly on my snails and the back wall which I dont scrape as I like to leave the diadema and snails something to eat - but mostly in individual strands. Can anyone ID these and tell me if they are a normal part of the algae succession, pest, etc? I dont mind the growth on the overflow teeth as it probably serves as a pre-filter, algae scrubber and I scrape most of it off when I do a water change.

 

[jejton]

bump.

 

[Killerdrgn]

Picture?
could it be bryopsis or hair algae??

 

[jejton]

I think the stringy one is hair algae but I have no clue what the feathery one is. I originally though feather caleurpa but I believe that gets bigger. These are no more than a couple centimeters wide and an inch or two long.

 

[johnmaloney]

if it is feather caulerpa, it won't grow in a clump, they grow spread out on a runner. But with the description you gave it could be any one of hundreds of species. When it grows out get a pic if you can.

 

[jejton]

The problem is that it doesnt get any bigger so I cant get a picture worth posting. I skimmed through a few algae ID forums but havent found a hit. How big does feather caleurpa get and how dense would it grow? This stuff just spreads. My overflow slots are covered in it - inside and out - even though I trim it down. I guess I dont mind it growing there as it serves as an algae scrubber but its also starting to grow on some rocks and has covered my snails' shells.