At first I thought this was just regular diatom algae. The tank is only 2 months old so I figured it was just the standard diatom bloom that comes with a fresh tank. However, this one section has started to look really weird and I'm wondering if this might be dinoflagellates? Maybe it's just nitrogen bubbles and I'm paranoid but I've never had dinos so idk what I'm looking for.
Algae ID
Algae ID