Zeolites, how to

[coburn13]

Hi, I'm going to start with zeolites. my aquariums is 300l sump included. What dose should I start ?
Thankyou

 

[Aquaforest]

Hello,
Recommended dosage is 100ml/100 l (27 US gal):
https://aquaforest.eu/en/product/zeomix/

If you never used zeolites-please start with half dose.