Did my LFS give me good advice?


After testing my water, my LFS told me that a possible cause of my algae problem is my lights. They said that my T-5's should have been changed out a couple of months ago. It's been 14 months, and I have never changed my lights out before. Everything tested good, Ammonia, Nitrite, Nitrates, and phosphates were all tested, and were all 0. Does this sound right?? The algae is red in color, and it looks like some bubble algae as well. Thank you


Active Member
how many hours you run them daily eats at the life span as well. remember light bulbs lifespan is actually measured in hours


I would say it is time to change them. But from what you described sounds like cyano and is really a bateria.