Kalkwasser and Magnesium

[Andrewalex11]

I want to dose Purple-UP in my system but have recently started using kalkwasser, is it safe to just add to my system or should I shut my ATO off for a period of time before using the Purple-UP.

For anyone who doesn't know what Purple-UP contains its basically just Calcium, Magnesium, and Strontium.

 

[rkpetersen]

It shouldn't be a problem. Magnesium might precipitate as the hydroxide if they happened to mix together but would redissolve. Put the purple up in the overflow and it will be well diluted before even getting to your ato output.

 

[Andrewalex11]

thanks!