I have a major algae or cyno problem

[kenyacat]

I have had red cyno. There was also a lot of brown mixed in. I used chemi clean and the red disappeared but not the brown. This was a week ago.

Within this one week, the brown has grown out of control. Has stringy areas in it as well. Not sure if it is cyno or diatoms. Not sure what to do now either.

I do not overfeed. I soak my frozen food in RO water and drain. Should I be flushing it more? My lights (130 watt PC in 29gallon biocube) are on around 9 hours and the actinic on about 11 hours. I cannot reduce my lights as I have a Sebae anemone in there.

I also put in last week when I did the major water change (12 gallon) a bag of chemi pure elite and a bag of purigen.

I have tried everything I can think of but the problem will just not go away.

Any ideas?