Some of the things I control with my Apex:
3 completely separated reef systems
1. Lights - ECOTECH REEFLINK
a. On/Off for T5
b. Spectrum/ intensity/ time for LEDs
2. Temperature - 2 300 WATT, ONE LOWER AS BACKUP..... WARM IN HOUSE SO DON'T NEED MORE THAN ONE.
a. On/Off heaters
b. One of three 800W heaters (system in garage) only come up if the other two cannot handle the temperature
c. Turn On/Off fan on sump
3. pH - DIGITAL PROBE. CHECK ONCE IN A WHILE.....DON'T SEE WHY IT SHOULD CHANGE MUCH
a. Monitor pH in each system
b. Control CO2 in calcium reactor
4. ATO for all 3 systems - TUNZE
a. One pump 3 solenoid valves
b. Monitor low/high levels in each sump (float switches)
c. Set up a different maximum On time for each system
d. Only turn On after 2 minutes the float switch is On
5. Feeding mode GYRE. BUTTON FOR 10 MINUTE FEEDING
a. Turn off skimmer
b. Turn off wave maker
c. Turn off return pump (only in one system where fishes are slow eaters)
d. After a while turn On wave makers, two minutes later turn On return pump, and two minutes later turn On skimmer (once water level is stabilized
6. Wavemakers - GYRE DONT WANT TO MESS WITH PATTERNS
a. Turn On/Off
b. Complete control of patterns for ecotech ones
7. Water changes MANUALLY DONE. NOT SET UP FOR AUTO
a. Control automatic water changes volume and speed
8. Chiller - DONT HAVE/NEED LED
a. Control On/Of
b. Turn off lights if On
9. Text messages me if (in any system): - WOULD BE NICE BUT UNLIKELY TO CHANGE SIGNIFICANTLY
a. Temperature: too high/low
b. pH: too high/low
c. ORP: too high/low
d. ATO: if in two cycles of solenoid On the float switch (for low volume) is still On; or anytime float switch (for high volume) is On
e. Power outages / breaker trips - I CAN SEE IF THIS HAPPENS IM HOME ALOT
f. Water leakage around tanks and sumps (also turn off return pumps) WOULD BE NICE BUT ONLY WAY THIS HELPS IS IF THE LEAK IS COMING FROM BLOCKED OVER FLOW
10. Keep logs and curves or Notes
a. Tests: Alk, Ca, NO3, PO4, Mg, etc... (manually entered for each system) - WRITE NOTES AND DOSE MANUALLY
b. Changes on Alk and Ca dosing
b. Power consumption - DOESN'T MATTER
c. pH, Temp, ORP, Salinity
There might be more that I cannot remember now...