I've had my APEX controller for several years, now. It does just about everything...despite all this, I still spend several hours a week doing maintenance...!!
Besides the standard temperature, skimmer and return pump controller, my APEX does:
1. pH monitor and control
-Day/Night pH control
2. Salinity monitor and control
3. On-demand auto water changes
4. Dosing of Kalk, Alkalinity, Calcium, Magnesium, Carbon, KN03
5. Monitors fluid reservoirs for Fresh water, Salt water, Kalk, Alkalinity, Mahnesium, and Calcium
6. Has a Maintenance Mode for cleaning, pumps. skimmer, float switches, etc.
7. Has a Service mode for service in the tank itself
8. Monitors houshold AC and Has an Emergency mode to run only essentials during power failures
9. Controls all my LED lighting including tank, sump and algae scrubber
10. Monitors return pumps for pressure loss
11. Runs in Limited Circulation mode if a pump fails
12. Monitors Sump high and low levels
13. Add water via ATO's
14. Drains waiter if sump level is too high
15. Runs on DC battery back up
16. Alarms when any of the above systems fails
I use Fussion as well. You can see my tank
APEX370g set up at the link below. Feel free to look at any of the Outlet programming:
User is:
visitor
Password:
reeftank
https://t.apexfusion.com/login
Vic B.