cyano outbreak PLZ HELP!!!!!

supernareg

New member
for the past 2 weeks, i been doing 5 gallon water changes on my 30 gallon display (with 10 gal sump) and nothing affects my cyano... just recently it started about 2 weeks ago, still up today, i siphon'd most of it out, and it came back the next day. its ****ing me off. i feed my fish 2-3 times a week now before it was once every other day. i have 2 false percs, 1 yellow wrasse, 1 cleaner shrimp and about 6 hermits and 3 snails. i have a euroreef 5-3 skimmer in sump, temp's at 81-82 never below 80, never higher than 82. 150watt 20k MH, 2 55watt actinics. MH on for 10hrs, PC on for 12 hours. 6 stalks of xenia and a couple batches of GSP, zoos, candycane, and shrooms. whats causing this? how can i stop it? oh, tank is about 6 months old.

whats causing this stupid problem? i have the saaaaaaaaaame problem in my 12 gal aquapod with 1 seahorse and 1 cleaner shrimp in there.
 
Cyanobacteria problems are best treated by reducing nutrients (nitrate and most especially phosphate), reducing organics (which they can consume; reduce them by skimming carbon, ozone, etc.), and increasing water flow. Antibiotics and other chemical treatments can be a last resort.

These have more info:

Antibiotics thread
http://reefcentral.com/forums/showthread.php?s=&threadid=58041


Phosphorus: Algaeââ"šÂ¬Ã¢"žÂ¢s Best Friend
http://www.advancedaquarist.com/issues/sept2002/chem.htm

Nitrate in the Reef Aquarium
http://www.advancedaquarist.com/issues/august2003/chem.htm

Iron Oxide Hydroxide (GFO) Phosphate Binders
http://reefkeeping.com/issues/2004-11/rhf/index.htm

Organic Compounds in the Reef Aquarium
http://reefkeeping.com/issues/2004-10/rhf/index.htm
 
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