Hi, Marc,

Have you read this page yet?
http://www.melevsreef.com/gha.html

Yes i've read it and tried everything during a full year, except
rising my alkalinity. If i could get 10 dkh and stay with it for maybe
a month, i'm sure i'll get rid of the algae.

You have a Calcium Reactor and a Kalk Reactor going to your 180g, and you are
still dosing C-Balance? I would think at that point you wouldn't need a 2-part
additive.

That's what I thought when I bought the calcium reactor about 5 months
ago!
Then about 2 weeks ago I started adding C-Balance.
The reactor is working like the manufacturer instructions. According
to Deltec, my calcium reactor is suitable for 355 gal. aquariums with
heavy stocking and high illumination
(http://www.deltecaquariumsolutions.c...reactors_3.php).

Any ideas?

Reefman