Hi, I’m looking for some help rn to figure out if I’m having a algae or Bactria outbreak in my tank. I recently left my tank for a week and left someone else to take care of it. When I got back my entire tank was green. I immediately checked parameters but everything seems to be fine regarding parameters. The green substance is all over the sand, rocks, glass, and filter. At first I thought it was film algae but I talked with my local fish store and they said it was most likely Cyanobacteria. What is it and how can I get rid of it?



