My two year old reef had a bad case of dinos six months ago that I fought for 3-4 months until trying UV. It completely disappeared within 4 days of installing the UV sterilizer. Well about three weeks ago the ugly brown/rusty colored snot reappeared so I thought maybe my UV bulb was loosing its punch and the sleeve needed a cleaning. I opened it up to find a blown gasket and water in the bulb compartment (it was still working). I decided to replace the entire UV sterilizer thinking that it would kill off the dinos again. Well, I guess I was blessed with a superstrain because I have perfected growing dinos. They definitely disappear at night like my previous outbreak so I thought they were going into the water column. I had undetectable phosphate by Hanna ULR phosphorous checker and 1 ppm nitrate by salifert. I am now daily dosing Seachem Flourish Phosphorous and potassium nitrate. The phosphate and nitrate levels are quickly reduced. Within 24 hrs the 0.06 ppm dose of phosphate drops to non-detect and 10 ppm nitrate dose drops to 1 ppm nitrate. Perhaps I need to dose twice a day? I see no decline in the dino population. Rather, it seems to be enjoying the nutrient dosing. I am at my wits end and about ready to reboot. Any advice on other safe strategies (not bleach) to try? Oh, I forgot to mention I kicked off this battle with a three day blackout and peroxide dosing for a week. Didn't touch it...


