I agree with FO, Also dosing kalk has Produces fantastic results, one is the Calcium / phosphate affinity. this causes phosphates to precipitate.
I agree with FO, Also dosing kalk has Produces fantastic results, one is the Calcium / phosphate affinity. this causes phosphates to precipitate.
My understanding is that not all the phosphate removers are "rust", as many are a white product that I came to understand was an oxide from aluminum.
hmmm....no idea about that.....
goes to show i learn things everyday...
rich