Howdy, This tank is a combination of 2 smaller tanks and has been running for about 9 months now. I've become rather addicted to growing and coloring Acropora of late but this tank is still a mixed reef. Sept 2018 May 2017, back in shape after a rescape, pest coral removal, and a mini crash. April 2015 FTS Tank Specs: Marineland/Perfecto 150 gallon (72x18x27) tank with dual corner Durso overflows and glass tops Monterey Stand 2 - MP40's and 2 - RW 15's Ecotech Battery Backup ATI Sunpower 6x80W supplemented by 2 BuildMyLED 72" strip lights (20K 3 channel and a custom ~18K) Trigger Systems Ruby 36S sump (36x15x16) EHEIM 1262 for the return pump Eheim-JAGER TS Heater - 250 watt Reef Octopus XP-2000 Cone skimmer with neck extender TLF PhosBan reactor with GFO Bubble Magus doser using TLF C-Balance 2 part APEX Controller KH is kept steady near 7.8, Calcium around 420 (I rarely test), Mag around 1500. I had a long standing issue with high nitrates but I've recently dropped it down to 2 by using Red Sea NOPOX and BioDigest. Phosphate has been kept low using the GFO reactor, last test was .025 using Salifert high rez, but not sure of the accuracy. I currently have the reactor off while dosing NOPOX.