Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
-   Saltwater Fish Diseases (http://www.tropicalfishkeeping.com/saltwater-fish-diseases/)
-   -   purple algae (http://www.tropicalfishkeeping.com/saltwater-fish-diseases/purple-algae-26309/)

Steph 07-23-2009 07:32 AM

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

wake49 07-23-2009 09:44 AM

Can you please post a pic?

onefish2fish 07-23-2009 01:48 PM

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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