Out of curiosity how many gallons are in your system and how much are you changing out in your water changes? Your live rock does look light visually but unless your feeding your fish alot (are you?) you dont have a huge bioload. I know the standard template is 1 Ib of rock per gallon of water but I go much less than that. I also have a fairly low fish bioload. I have been running my tank for a year and a half now and have never been able to get a detectable nitrate reading. I attribute that to weekly water changes more than anything else.
For the algae are you changing your bulbs out regularly? Over time the light spectrum changes and can become more condusive to promoting algae growth.
I had a tough time with cyano but finally have seemed to get through it. One of the things I think made it thrive once getting a foothold was inadequate flow. Depending on the size of your tank you want to make sure there is enough water circulation. In the end I did resort to chemical treatment though to get rid of it.
Good luck
Last edited by Palmer; 05-07-2011 at 04:21 PM.
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