Nick can you give us a run down of your tank specs
Sure.
Tank=Elos System 70-55 gallon display(30"x22"x20"), 15gallon sump
Light=Elos Planet II- 1x250W DE(Pheonix bulb), 4x24W T5(2xATI Blue Plus, 2xUVL Super Actinic)
Refugium light=ELos Estripe 21W LED running reverse cycle(On at night) to help with PH
Return/circulation Pump=Eihem 1260 with a valve
Wave/Flow pump= Vortech MP40 at 50% in long pulse mode
Skimmer=Vertex Omega 150
Heating=Eheim Jager 50W
Cooling=2x SCYTHE SLIP STREAM SY1225SL12L PC fans
ATO= GHL optical sensor and float with SpectraPure LiterMeter pump
Nutrient Control= BRS HC GFO, BRS ROC carbon, Chaeto in the fuge
Supplements=BRS Alkalinity, Caclum, and Magnesium automated dosing with GHL doser
Water Change=5 gallons a week. Could easily automate this but don't want two many storage container in the room.
Controller=GHL Profilux 3EX with remote access and control. I have a lengthy set up guide over at RC.
Safety Features= Email and Text with alarm is on. Alarm is on when temp is out of the desired window, PH out of desired window, salinity out of desired window(this is a safety specifically for the doser. In the event of a stuck on pump, the large amount of ALK/CA/MG fluid will raise the salinity level. This will cut the power to the doser), water level too low or too high in sump, water too high in display tank(drain is clogged) which turn off the return pump. Skimmer has a black out delay of 3mins so that the water level can settle after a power outage otherwise the skimmer will overflow. I've put a lot of thought into the system over the years. The longest I've been away from the tank is 4 weeks and someone just need to feed the fish. The tank looked better when I came back. I think I put my hand in the tank too often when I'm home.
Temps=78
PH=8.0-8.2
Conducitivity(salinity)=49ms or 1.026
Alk=9dKH
CA=450ppm
MG=1400pm
Phosphate=0.01-0.04 (tested with Hanna checker)
Nitrate=2-4ppm (Tested with Red Sea Pro)
Sump tank
The dosing unit with ATO pump and supplements container. This can last me about a year.