joltibo
Aquarium Advice Regular
What is causing this?
Sounds like a build up of limescale. Do you have hard water??What is causing this?
Me too!!. It's such a pain. As soon as the water evaporates in my tank, it is very noticeable. It usually comes off a heater quite easily. Just let it cool for 20-30 minutes before removing it from the tank and after cleaning it(no chemicals needed) leave it in the tank for 10-20mins before switching it back on. For very stubborn build ups, carefully use a razor blade/scraper to remove it. There's nothing worse than a heater shattering inside the tank.....I live in an area with hard water and we have calcium/lime build up on everything if we're not careful. I think that's probably what it is.