Thanks Kenny, I will try!
ReefSic, you're right. Because Staghorn and A. Formosa in particular are mostly fast growers, they will use a lot of Ca and Alk.
Calcium and alkalinity will be maintained using two part, controlled by a Grotech TEC III dosing computer. Trace elements according to the Balling method are dosed together with the solutions.
Additionally I use a Schuran Kalkwasser reactor to keep the pH up during the night. All the top off water be fed through the reactor.
Pcrain; thanks

Like i said before, I will use a Grotech TEC III dosing computer for the two part solutions and trace elements.
I'm not going to use any carbon sources in my new tank, because I believe it doesn't benefit the balance of the aquarium on long term. It can be great to use for a certain amount of time to bring down nutrients, but in my experience it can bring the tank out of balance on long term.
I'm struggling with Dinoflagellates and Cyanobacteria for some time now, and I strongly believe this is caused by dosing carbon. I've stopped dosing for quite some time now, but it's hard to get rid of them once they are present.
Besides that my corals didn't respond very well to it, becoming more and more pale and even started to STN, while red cotton algae, cyano and dino's were blooming. This told me some parameters just were out of balance and I decided to keep it simple and just stick to waterchanges, two-part+kalkwasser and some trace elements.
Leonardo