Few months later, algae is gone. I have changed my bulbs from the 10k to the 14k SPS (South Pacific Sunlight) bulbs.
I removed the heater from the maintain, and I current have 3 heater on my sump (it has been very cold out).
PH- 8.3
DKH 9
Magnesium 1300
Nitrate 0
Ammonia 0