what is this algae

[Saieditc]

hello what id this algae
what do i do for this and remove it

 

[Gareth elliott]

Pictures a bit blurry but those look like trapped bubbles under a sheet. If so cyanobacteria. The two instances i have experienced cyano grow were very low nitrate and areas of low flow. Both lead to conditions that they outcompete other true algae in. I like the slow approach to fixing, keep po4 between .01-.1ppm and keep nitrate between 5-10 ppm. Provide additional flow to any dead zones. Sometimes this is as easy as repositioning a power head. Or adding a cheap ac constant flow to that area(hydor takes my vote for ac pumps).