My pool is clear, FC has been above 3 with cya at 35, no signs of anything green on walls or fittings... but, there's weird gold stuff on my cleaner hose. It's like gold paint was dripped along it. "Puddles" about .2" x .5", randomly on the hose, mostly near the cleaner (deeper). I rubbed it off a couple days ago, now there's more. Mustard algae?