Posted: Wed Feb 26, 2020 1:45 pm Re: hardwater
Hard water deposits normally with all the minerals in it attach to solid objects as Steve states not float. If you live in US it’s law water company’s must provide water quality report to you. Most mail it to you once every year and it's online too. You need this to know what you are starting out with so you know what to do to get the end result you want.
What are your “GH” and “KH” numbers ?
May be as Steve states or even a protein buildup….picture’s of setup and more detail will help a lot.
I have “very” hard water out the tap 5.0-9.5gpg and being a long time turtle keeper never use “any” chemicals to get what I and Piggley want/needs. Never know what you get mixing chemicals…. I do everything the natural way , nature is wonderful.
If you want to use chemicals I would start reading the “MSDS” and or “SDS” on them. Not all tank chemicals are safe for turtles !