Over the last month I’ve been dealing with algae/bacteria growth on my sandbed. Switched from biweekly water changes to weekly. Then started syphoning in between. Gets worse as lights are on during day and recedes at night. I’ve dealt with cyano before. While this is more of a rust than the red/purple color, it had the hallmarks of cyano so 36 hours ago I started a dose of Chemiclean. However as of now I am not seeing any change, which now has me thinking I miss IDed. Given my parameters (below)not sure if it is dynos. Also not seeing any sign of this on the rocks. Pics below. Appreciate any thoughts, advice or help! Thanks in advance.
parameters consistent over last month:
Salinity 1.026
Nitrates: 11.6
Phosphate: 0.07
DkH: 8.5
Cal: 440
PH: 8.1
parameters consistent over last month:
Salinity 1.026
Nitrates: 11.6
Phosphate: 0.07
DkH: 8.5
Cal: 440
PH: 8.1