Pat's 120

[pterfloth]

Everything appears to be working well.

[Aqua-Digital]

Ok so now you have changed the 50% media you are now on phase two.

After this initial phase, add 2 drops of Bio per 100 Liter every three
days, until the next exchange of the Ultralith filter medium

Bak:
after the nutrient levels start to drop decrease the dose slowly to 2 ml per 1000L per day. If nutrient levels are extremely low you can decrease the dose even further to 1.0 ml per 1000 L per day.

Min-S:
Ultramin S should be used permanently and dosed every day