A lot of Purple Alqae on Glass and Rocks? Is this Bad?

gregbva

gregbva

Member
I have a lot of Purple Alqae on the Glass in small circles in my Reef Tank and some small spots of dark brown/red alqae, Is this bad?
Tank 29 gallons Reef Tank with a Hippo Tang 3 inches, Clarkii Clown 4 inches, Pigmy Angel 2 inches and a Percula Clown 2 inches, one Cleaner Shrimp, 3 Emarld Crabs, 9 crabs and 7 snails. 60 lbs of live rock and 40 lbs of live sand.
Filter is a Whisper Dual filter hang on the back, Prizm Protein Skimmer and 2 powerheads and heater.
 
foulbrew

foulbrew

Member
No, it's good. Coraline algae will grow all over with the correct levels of Calcium and Magnesium. When it grows on the glass where you don't want it just scrape it off with an aquarium scraper or razor blade.
 
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