Ok so I posted this on my old thread but I decided to make a new one just for this.\n\nThey glass is getting spots all over it. They are little brownish spots and are varying in size but overall the size of a pin head.\n\nI scraped them off but I can't get the low low ones without disturbing my substrate and don't want it flying all over.\n\nFirst of all what is it? (tank is in 8th week of cycle)\n\nIs it better to get a flat style scraper for the bottom areas and not disturb the substrate?\n\nIt is also beginning to stick to the rocks and is most noticeable on the dry rock that used to be only white. The dry rock that sits in the back area of the tank seem much less covered if at all. I have 3 powerheads and the flow is great everywhere.\n\nI figured this was part of the cycle like I have read many times.