Any thoughts on this 105 been setup for 2 years

[Linkfalcon]

Hey so my tank had been set up for 2 years and still seeing this stuff and any idea the only think I have done is added more water volume by adding a larger sump and moved my figs to its own tank in all I have added 120 gallons

 

[P-Dub]

Cyano is what it looks like. I don't worry too much about cyano unless it is covering corals. You can always get some burrowing wrasses and cucumbers to keep the sand cleaner.

 

[ASIN28]

Hey so my tank had been set up for 2 years and still seeing this stuff and any idea the only think I have done is added more water volume by adding a larger sump and moved my figs to its own tank in all I have added 120 gallons

I had the same issue but my tank was running way less than 2 years. My sand bed was absolutely horrible looking, I bought a Diamond Watchman Goby, this guy I kid you not cleaned my whole entire 120G sand bed in 2 days. In 2 days my sandbed was sparkling and continues to sparkle because of the job he does. He is a sand sifting beast!!!

 

[Linkfalcon]

Thanks I have been blowing it off corals is there a better option for that as well

 

[Subsea]

Thanks I have been blowing it off corals is there a better option for that as well

Syphon it from rock removes cyno debris from tank.