White crust on heater

[joltibo]

What is causing this?

 

[Ian086]

What is causing this?

Sounds like a build up of limescale. Do you have hard water??

 

[venymae]

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.

 

[Ian086]

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.

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.....

 

[joltibo]

Alright thanks
I'm actually using tap water from someone else, we have softened well water at home

Here is the thread

http://www.aquariumadvice.com/forums/showthread.php?t=295344

 

[mrvincent]

Probably due to hard water... Look like it dissolve in acids... I would try cleaning it with vinegar.

Seems RODI suck the carbonate calcium from limestone, should work too.