Hello, my tank has been running for just under a year and for the last few months the tank has been covered in diatoms and now the algae looks like the photo i’ve uploaded. My local shop suggested i place a silicate remover into the sump which i did and that seemed to get rid of the diatoms but now the algae looks like this instead. Please could somebody help with which type of algae it is and how I could try to get rid of it?