Algae floating?

[Aw_Ref]

I had repeated issues with cyano last summer and decided to run a phosphate/silicate magnet in my sump. Knock on wood, but I haven't seen a trace of cyano since adding the flowthrough bag to my sump.

[roka64]

O yea roka, u suked all the slime out and no slime has appeared again at the same spot? I tried scoping the sand at the slimy area out to rid of the slime but within a couple of hour, the slime layer formed again (even a larger patch!)

No, it just moved down a little more. I moved my Phs also.

dwh890nc, will do. I'll reduce to 8 hours...what about my acitinc? I only run them 30mins prior to lights on and after they turn off.

[FishFrik]

I remember reading something about cyano doesn't like actinic spectrum. Mayb someone else chime in about this

[Devilishturtles]

I'm sucking knowlege out of the depths of my brain here, so if I'm wrong, someone correct me.

Cyanobacteria, like diatoms kinda, can grow even in low light conditions. Cyano has little protein reactors in it that turn just a little light into the energy it needs to grow and thrive. So, I don't think reducing your lighting alone will help.

Something else to try would be some sort of phosphate reducing media that you can insert into your filter if you run one.

Otherwise, I'd keep up with the limited light cycle and more water flow approach. Good luck!