purple algae - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 07-23-2009, 07:32 AM Thread Starter
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purple algae

I have a 30 gallon salt water tank and suddenly I seem to have a purple algae problem. I can clean the tank and the next day it is back. It doesn't seem to be bothering my fish, but it looks bad. In my tank , I have 2 damsels, 2 turbo snails, 3 dwarf hermit crabs, and an emerald crab. Any ideas as to what this is and ho to get rid of it. ? Thanks. Steph
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post #2 of 3 Old 07-23-2009, 09:44 AM
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Can you please post a pic?

Nothing good happens fast in an Aquarium

My 30 Gallon Long Marine Tank
My son's 20 gallon FW Community
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post #3 of 3 Old 07-23-2009, 01:48 PM
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if its not hard purple aglae ( coraline ) then my first guess would be cyano.
what is your water source? lghting? how old are the bulbs? how often do you feed/what? how much flow is in the tnak?
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