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FAQs on Marine Algae Identification 20

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Related FAQs: FAQ ID Visual Guide, Marine Algae ID 1, Marine Algae ID 2, Marine Algae ID 3, Marine Algae ID 4, Marine Algae ID 5, Marine Algae ID 6Marine Algae ID 7, Marine Algae ID 8, Marine Algae ID 9, Marine Algae ID 10, Marine Algae ID 11, Marine Algae ID 12, Marine Algae ID 13, Marine Algae ID 14, Marine Algae ID 15, Marine Algae ID 16, Marine Algae ID 17, Marine Algae ID 18Marine Algae ID 19, Marine Algae ID 21, Marine Algae ID 22, Marine Algae ID 23, Marine Algae ID 24, Marine Algae ID, 25, SW Algae ID 26, SW Algae ID 27, SW Algae ID 29, SW Algae ID 30, SW Algae ID 31, SW Algae ID 32SW Algae ID 33SW Algae ID 34SW Algae ID 35SW Algae ID 36SW Algae ID 37SW Algae ID 38SW Algae ID 39& Marine Algae Control FAQs 2, Marine Algaecide Use, Nutrient Limitation, Marine Algae Eaters, Culturing Macro-Algae; Controlling: BGA/Cyano, Red/Encrusting Algae, Green Algae, Brown/Diatom Algae   

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Marine Aquarium Algae Control

by Robert (Bob) Fenner

Fungus Growing In Tank, colonial hydroids? 01/30/2008 Hi Sara M. - Thanks for the reply. I wasn't sure I could get any decent pictures of the fuzz, but took a few which I have attached. The first three are of the rock as it currently looks with the white, fuzzy slime growing on it. The 4th picture is of the rock when I first got it. I'm so disappointed since it looks like it had some color back then, with the promise of maybe some coralline algae to grow. Now, it just looks slimy. I changed out the crushed coral substrate since it had a mat of greenish slime growing over the top of it, that just got worse. I was doing water changes just so I could vacuum it off the substrate, which didn't work well since it was stuck to it. <I've had this stuff too. I could be wrong, but I think it's some kind of colonial hydroid. I got rid of it by continually scrubbing it off with a tooth brush, doing water changes, etc.> Take a look at my pictures and see what you think. I looked up some hydroids and the pictures I found look like something that gets tall, and branches out. This just looks like a fuzzy slime. Thanks so much for your help. <Right, but there are lots of different types of these things. This is just my best guess.> Kim <Good luck, Sara M.>

Hi again Sara M - 01/30/2008 I just stirred the patch of oolitic sand I put in the tank about 2 weeks ago, and found that the top is starting to crust over. <Hmm... this looks like a separate problem. When sand clumps, it's usually because of bacterial secretions that "pool" in sand that's too stagnant. This is a sign that you need more benthic life/diversity. You need more worms, micro-crustaceans, etc. to "stir" the sand.> I'm sending you a shot of that, plus what the back of the tank looks like. Half of the tank is sand and the other half is mostly bare. The oolitic is so fine, that when it floats around the tank, it just sticks to the slime and makes a worse mess. <I'd suggest getting some live seeder sand and/or some such "starter packs" of critters for deep sand beds.> Kim
Sara M.>

An algal, plus mess. RMF.

Algae ID. BGAs plus... reading  -- 1/26/08 Hi everyone, I was wondering if you could help me out. I bought some L.R. from Tonga, absolutely beautiful stuff. When I got it home, I gave it a good scrubbing, <Mmm, best not to "scrub too much">  and used it cycle my new 75gal. This rock looked so good, sitting on top of my D.S.B. (thanks for the DSB idea, just now really beginning to work :-)) covered with multiple colors of coralline algae, and a little, tiny, itty-bitty patch of dying/dead (or so I thought) fuzz. I bet you can't guess what happened after I put in the fish in, increasing the nutrient load, and fired up the T-5?s can you? :-) BOOM I have putting green, spreading like a wildfire that would make the boy's at Augusta jealous! <Oh! A sports reference?> I'm in the process of buying a Remora, and a RO/DI unit to help reduce the nutrient load. <Will help for sure> The problem I'm having is identifying exactly what type of algae it is. I was pretty sure it was Bryopsis, and was considering raising the Mag. Level up to 1500-1600, and burn this stuff too death, <Mmm, this won't do it> if reducing the bio-load/reducing amount of light didn't work. That was the plan until I seen an image of what a person was calling Bryopsis. Their image looked much more ?Fern-Like?. The stuff I have is shorter ¼-1? in height, dense, and very thin, hair-like stuff. Here are a few Images, sorry their blurry, but so was my vision when I took them!! (Ahhaahaahaa) Thanks for your help, Pat http://s217.photobucket.com/albums/cc129/Pat_H/?action=view <http://s217.photobucket.com/albums/cc129/Pat_H/?action=view&current=DSC0117 4.jpg> &current=DSC01174.jpg  http://s217.photobucket.com/albums/cc129/Pat_H/?action=view <http://s217.photobucket.com/albums/cc129/Pat_H/?  action=view&current=DSC0117 5.jpg> &current=DSC01175.jpg http://s217.photobucket.com/albums/cc129/Pat_H/? action=view <http://s217.photobucket.com/albums/cc129/Pat_H/?action=view&current=DSC0117 6.jpg> &current=DSC01176.jpg http://s217.photobucket.com/albums/cc129/Pat_H/?action=view <http://s217.photobucket.com/albums/cc129/Pat_H/?action=view&current=DSC0117 2.jpg> &current=DSC01172.jpg Here's what it looked like before the ?Outbreak? http://s217.photobucket.com/albums/cc129/Pat_H/?action=view <http://s217.photobucket.com/albums/cc129/Pat_H/?action=view&current=New75ga lTongaLRDSB004.jpg> &current=New75galTongaLRDSB004.jpg <Is likely a mix of algal "groups" (Divisions), but mostly BGAs... Blue-Greens... Read here re: http://wetwebmedia.com/maralgae.htm and the files linked above, elsewhere, where you lead yourself... Bob Fenner>

Bryopsis, Derbesia?  01/22/2008 Hey Crew, I was wondering if you can help me identify some algae growing on live rock in my tank. It seems to be growing on only one piece of rock and I actually think it looks pretty cool. I just wanted to know if it's bad for my tank. It seems to be spreading very slowly. No one in the tank seem to eat the algae except for some worms who live in rock, they come out at night and pick at it. Enclosed is a picture. Thanks for your help. - Joe <See the above genera... on WWM, the Net, books... Bob Fenner>

Weird Thing Growing in Tank: Bubble Algae - 1/21/08 Hi, <Hi there, Maleyna!> The pictures are of a weird egg/bubble growing in my tank. I have no idea what the heck it is. I'm thinking of putting it in the sump because 1) I don't know what it is going to grow into and 2) If it does grow into something it looks pretty big and I don't want it to harm any of the fish or soft coral we have in the tank. <No worries there. What you're seeing is Bubble Algae, likely Valonia/Ventricaria ventricosa. I would manually remove. Just be careful not to puncture/burst the cell(s), as the spores inside could cause it to spread. There's a wealth of information on this topic at WWM. Please Google the terms: Bubble Algae, Valonia, or Ventricaria: http://www.wetwebmedia.com/WWMAdminSubWebIndex/question_page.htm Here's an additional link as well: http://www.reefkeeping.com/issues/2002-02/hcj/feature/index.php .> Here are some pictures of the tank http://picasaweb.google.com/maleyna>here.<http://picasaweb.google.com/maleyna <Thanks! I Wish I could see them, but unfortunately, I keep getting an error message.> It's about 8 months along and is my husband's pride and joy, I just don't want to be the one to tell him something ate everything else while he was deployed. Anything you can tell me would be helpful. <Again, no worries. If you had a massive amount of these 'bubbles', I'd be concerned about your nutrient levels, but an occasional one here and there is no biggie. Just carefully dislodge and dispose.> Thanks, Maleyna
<You're very welcome! Take care --Lynn>

Unidentified water objects -algae IDs 01/14/08 Can someone please help me identify this plant life. I am a NOVICE at saltwater aquariums and these both came on the live rock that I purchased. But it would be really nice to know what they are. <The brown one looks like Padina sp. algae, please see here: http://www.wetwebmedia.com/brnalgfaqs.htm The red one looks like some kind of Fauchea sp. algae, but I'm not sure. Please see here: http://www.wetwebmedia.com/redalgae.htm> Tam'e
Sara M.>

Re: the first pic:  Mmm, looks like lobophora to me...  M <Me too... will add your comment. RMF>

Purple Seaweed ID... Dictyota  1/10/08 Hi Michelle <Hi Andrew> Thank you so much for your reply, it was most helpful. <You are most welcome!> No wonder I couldn't find it using a description of "purple seaweed"! <Heehee! Nope!> As noxious as this weed seems to be, in the confines of the small tank I placed it in. It could have become a beautiful display, <Yes, so long as you're aware of the potential problem.> but alas, it was all consumed (by what I don't know) <A shame, would be good to know what found it tasty!> within just a few days of placing it in the tank. <Quick!> I guess these things have a way of working themselves out! <Indeed.> Take care. <And you as well. Mich> Andrew

Marine Tank Strange Purple Moss -01/05/08 Hello WWW Crew people! I have a question regarding this strange purple moss that has been growing on portions of my live rock the last few months. My nitrates are below 20 ppm, but I do have a heavier tank load than normal. When it first showed up I thought it was coralline algae, but as it spread it got thicker. It doesn't have a coarse texture like other macro algae (maiden's hair, etc.) but it doesn't seem to be slime. It looks like it grows more on places where there's a little more water flow and it is more prominent on the branch live rock I have. It is almost non-existent on the regular live rock. It doesn't scrape off easily and I noticed that at night the algae either disappears into the rock or shrinks. <That's weird. Unfortunately, the photos just aren't clear enough for me to even make much of a guess at this point. It might be some kind of sponge or something else.> Do you guys know what this stuff is or if it's bad for the tank? <It's hard to say from your description alone. Please do send better pictures (if you can get them).> I have a picture attached. Thanks for your help! <De nada, Sara M.>

Re: Marine Tank Strange Purple Moss -01/05/08 Thanks for the response! I decided to do a little more research on your website and it's looking like colored blue-green Cyano algae (I saw some pictures other people took and posted and it looks very similar). <Ok, congrats on figuring it out.> I'll follow the advice of what you guys have on the site on how to try and get rid of it. Thanks for the help and sorry I didn't do enough research on the site before asking my question! <No worries :-) Best,
Sara M.>

ID of New Life  1/5/08 Hello Thank you for all the wonderful help. <Welcome> I have 2 new life forms that have hitched a ride on my live rock - can you identify the orange organisms in the attached? I'm at a loss, although I suspect the one in the background is some sort of algae. <They are both algae... the one in the front is a Brown, Lobophora... the rear a Red... Please read here: http://wetwebmedia.com/redalgae.htm> Cheers
<Welcome. Bob Fenner>

Red hairy algae, cont.  -12/22/2007 Hi Bob, <Sihaya here> I had my SPS tan running for a year. Lately, a few patches of red hairy algae have started to spread. I have spotted them at the overflow boxes first and then started over the live rocks. I have a few Mexican snails but I was wondering of adding a sea hare. What do you think ? <What kind of algae is this? Would you please send in a picture? Or, better yet, please browse the marine algae ID pages so that you might better narrow down the ID. Does it look like any of these? http://www.wetwebmedia.com/maralgidfaq6.htm or these? http://www.wetwebmedia.com/maralgidfaq12.htm http://www.wetwebmedia.com/maralgidfaq9.htm> Thanks Ramy Toronto, Canada <Best,
Sara M.>

New Print and eBook on Amazon

Marine Aquarium Algae Control

by Robert (Bob) Fenner

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