I am also using Zeovit and could not be happier, hair alge gone and tank has never looked better. Cleaning is easier - less, and everthing is doing nicely.
Great tank of the month, I would be very proud of this tank, also some of the cleanest looking tank I have seen are all use Zeovit.
I know know 5 tanks just in AKL using this and everyone is pleased, seen them first hand.
Arron