Weird Spots On Heater Question

  1. dartzy Member Member

    Anyone have any idea what's on the bottom of my heater? Thought it was air bubbles but on closer inspection, I see it's something else. This is a new heater and was put in just a few days ago. Deffinatly didn't come that way. Anyone seen this before. They are SUPER small but they are not flat, that's for sure. Have 9 tetras (5 glow, 4 whites), 3 ghost shrimp and two tiger nerites in the tank. [​IMG][​IMG][​IMG]
     
  2. Retro Initiate Member

    Is it anywhere else in the tank? Looks like an algae growth, or hard water buildup. Not quite sure, maybe ich for heaters?
     

  3. dartzy Member Member

    No, it's only on the heater. I do have very hard water. I thought maybe algae as well.