i recently started running GFO to help get my phosphates down to 0ppm.
about a day later i notice air bubbles/pockets seemingly coming from the sand bed and live rock.
would this be the phosphate being "released" from these surfaces and escaping into the water column for munching by the GFO in my reactor?
i've otherwise never seen these air pockets/bubbles before. they do not move and are all on surfaces.
here's a photo for reference - the silver dots. it seems they have come from within as i have never had this many gaping holes in my sand bed.
any ideas?
about a day later i notice air bubbles/pockets seemingly coming from the sand bed and live rock.
would this be the phosphate being "released" from these surfaces and escaping into the water column for munching by the GFO in my reactor?
i've otherwise never seen these air pockets/bubbles before. they do not move and are all on surfaces.
here's a photo for reference - the silver dots. it seems they have come from within as i have never had this many gaping holes in my sand bed.
any ideas?