Algae Identification Thread

Discussion in 'Marine Plants and Macroalgae' started by spanko, Feb 18, 2010.

  1. spanko

    spanko Active Member

    An algae identification thread
    How about an identification thread for marine algae? Member Keeshcarm had asked about one and I thought I would give it a shot. It is not the intent of this thread to give advice on the algae, just to help to identify it. While the species shown may not be the species you have it will give you an indication of the look of the algae and possible help you to search for the exact species you have. Be aware that you may never be able to get down to the exact species but hopefully this I.D. thread will help you to identify the genus and possibly family and therefore the care needed.
    Whenever we set up a tank it seems that there are at least a few different algae that hitch along with the live rock. Some good some invasive but always part of the biota out in the vastness of the ocean we are trying to replicate. There are reefers that will do anything to get their hands on as many and varied types they can do add to their displays, then others that will do anything to keep it out. Won’t take up sides here but will try to go out to the net and pick up some photos and descriptions of some of the ones we see more often than not. I will also attempt to give credit for the pictures in a way that does not go against any of the rules of for posting here. So here we go!!
    Lets start off with one of the more common and invasive of the algae we see, that being Caulerpa sp.
    A quick note on the law…….
    United States Law: It is illegal to import or transport Caulerpa taxifolia aquarium strain across state lines including internet sale (Federal Noxious Weed Act, 1999; and Federal Plant Protection Act, 2000). I suggest you do some more research on the laws regarding the transport and sale of Caulerpa sp. Especially our California friends.
    Caulerpa taxifolia

    Caulerpa mexicana

    Caulerpa prolifera

    Caulerpa racemosa

    Caulerpa serrulata

    Caulerpa sertularioides

    Caulerpa brachypus

    Caulerpa racemosa var. peltata

    Caulerpa nummularia
  2. spanko

    spanko Active Member

    Hair algae, for the most part another of the invasive varieties. With the noted exception of Chaetomorpha.

    Derbesia sp.

    Bryopsis sp.
  3. spanko

    spanko Active Member

    Now let’s show some of the bubble algae.
    Valonia macrophysa

    Ventricaria ventricosa

    Botryocladia uvaria
  4. spanko

    spanko Active Member

    Here are a few of the turf algae.
    Ulva rigida

    Chlorodesmis species

    Gelidium pusillum
  5. spanko

    spanko Active Member

    Some of the Calcareous algae. These are algae that grow on limestone or in soil impregnated with lime. They will uptake calcium from the water and use it to grow.
    Coralline Hydrolithon boergesenii

    Peyssonnelia sp.

    Mesophyllum mesomorphum

    Codium edule

    Codium vermilara

    Halimeda macroloba

    Halimeda tuna

    One of my favorites Neomeris annulata

    Penicillus dumetosis
  6. spanko

    spanko Active Member

    Red algae.
    Gracilaria curtissae

    Halymenia sp.

    Scinaia sp.

    Galaxaura fastigiata

    Nemastoma sp.
    (Meowzer suggestion)

    This list is not all inclusive but to be used as a guide to some of the more common algae that I have come across in my reading of hobbyists posts for identification. If anyone wants to PM me with some that should have been included I can do some editing and include it.
  7. meowzer

    meowzer Moderator Staff Member

    I don't see anything that looks like my mushroom like thingy
    Great thread Henry...I sure hope the pics stay this time
  8. spanko

    spanko Active Member

    Well this thread seems to have made it through the upgrade!
  9. life~reefer

    life~reefer New Member

    Nice work Henry!!
  10. plug

    plug New Member

    This grew from a piece of live rock in our tank, and is growing rapidly. It looks like some type of red macroalgae to me, but I haven't found any pictures of it anyplace. It's beautfiul looking in the tank, but I want to make sure its ok.
  11. spanko

    spanko Active Member

    Looks like Gracilaria to me.
  12. btldreef

    btldreef Moderator Staff Member

    I really think this thread should be "stickied", thoughts?
  13. spanko

    spanko Active Member

    I think it is isn't it?
  14. btldreef

    btldreef Moderator Staff Member

    I don't believe so. It took me a while to find it last night, but I was having some computer issues.
  15. btldreef

    btldreef Moderator Staff Member

    And now today it shows up as a "Recommended Thread". I hate my computer! Santa needs to deliver my Mac early!
  16. spanko

    spanko Active Member

    Did you find the algae you were looking for?
  17. btldreef

    btldreef Moderator Staff Member

    Originally Posted by spanko
    Did you find the algae you were looking for?
    Yes. I love this thread. I used to have it bookmarked until my computer crashed.
  18. spanko

    spanko Active Member

    If you run across any ID's in you moderator travels please post them in the thread or get them to me via PM and I will edit the appropriate area to add them to.
  19. don1234

    don1234 New Member

    Here is one! Anyone know what this is and how to control it?
  20. spanko

    spanko Active Member

    Caulerpa serrulata would be my guess here. Control is difficult if you want to get rid of it entirely. If you want to keep some then aggressive pruning is the method.

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