Are there any known algae diseases?
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Are you asking if there are any diseases of algae, or any diseases caused by algae?
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class RHODOPHYCEAE-1.total absence of flagellated structures(vegetative as well as reproductive).\n2.presence of phycoerythrin(red pigment) and phycocyanin(blue) in addition to chlorophyll a,d,beta carotene.\n3.food reserved mostly in the form of floridean starch.\n For further details refer books on phycology.or textbooks on botany.
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phytoplankton, algae, u name it, everything smaller than it is!
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Kelp, algae, phytoplankton, seaweed
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There are many.\nIt depends on what species you are farming.\nFish can get a number of nasty pox family virus when in the close confines of aquaculture. RSIV The red seabream Iridovirus is another nasty one. Clams and other molluscs are susceptible to Norwalk virus and many others.\n\nit would help if yu could narrow down the type of aquaculture and the species you wish to know about.\n\nhttp://rfdp.seafdec.org.ph/publication/paper.html  has some good journal mentions.\nhttp://www.daasix.org/committee/executive_committee.htm  is the definitive source on this topic.\n\nCauses: Often over crowding, stress and wrong nutrition. Diagnosis, often visual, but also poor growth, poor breeding. Control. Medication sometimes works, but is not the answer. More infrastructure and monitoring helps.
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There are differences between fungi and algae, apart from chlorophyll and chloroplasts.\n\nAlgae are plants, and contain cellulose in their cell wall.\n\nThe cell wall of fungi contains chitin.\n\nThere are other differences, too.  Fungi vary greatly in reproduction strategies and mechanisms, for example.
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1. Coral reefs:\nThere are many types of algae that live inside and outside corals. \nMainly Caulerpa and Corallina species, and many more are named there:\nhttp://www.com.univ-mrs.fr/IRD/atollpol/ecorecat/ukalgrec.htm\n\nInside coral polyps themselves, there are symbiotic microscopic algae. Their common name is "zooxanthellae", but they are in fact multiple species of Dinoflagellata:\nhttp://www.marinebiology.org/coralbleaching.htm\n\n2. Tropical algae: again, far too many to list.\nLook around the Seaweed Site, and pick ones that grow in tropics. http://www.seaweed.ie/\n\n3. Besides algae, there are seagrasses (flowering plants living in the ocean):\nhttp://en.wikipedia.org/wiki/Seagrass
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Take a look at www.electrichlor.com. They have a product that will eliminate algae/bacteria/marine species from ballast water and protect our coasts and lakes from invasion of foreign marine species. There is more than 1M tonnes of ballast water dumped around the world's coastal areas daily.....
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amoeba\nand i think cynobacteria \neuglena might be not, but im not sure
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when i was 16 i did swim in a pool with lots of green algae, (not enough to really see, but more than normal,) and my hair definately had a serious green tinge to it for atleast 3 months. i don't know much about blue algae though.
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absolutely dinoflagellates...they cause red tide
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Bacteria, amoebas and fungi
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It may very well be one of the brown algae, especially if your coral is in direct sunlight during some part of the day.  I don't know enough about corals or keeping fish to say if it's a danger, but a good pet shop should know.  If your fish is normally from saltwater, likely it is adapted to such things.
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Growth of algae I believe.
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They think it was algae.
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bacteria, viruses, cyanobacteria or fungi?  or do you mean specific examples
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Morgellans Disease.\n\nhttp://www.libertypost.org/cgi-bin/readart.cgi?ArtNum=141312\n\nhttp://www.morgellons.org/images.html