I had a bad red slime out break, roof leaked and didn't catch it right away. Flat hot tar roof added? In about a week and a half came up with a bad, bad, red slime cyano terrible out brake. Vacuum out 90% of it. Then dosed ChemiClean for cyano for three days, talked to ChemiClean and they said "No water change" and to just dose again at 75%. I did, now on the second day of the 2nd dose still some cyano left. A few patches a thick royal marron cyano. Can I test NO3 and PO4 and get a accurate test reading? I know NO3 is high other wise I would not have it... right? But now to save fish and corals, does ChemiClean knock down the good bacteria in the tank? And when dosing Chemiclean should I be dosing Microbactor7? Sorry so many questions.. for this I do apologize, but I need some help.. Some experience is need here. Thank you