PLease recommend lighting for tank as well as fertilizer, also Have had halimeda from drs. foster and smith go white and fall apart in past attempts what calcium and alkaline boosters should one use have 180 pounds plus of figi rock in tank. Do you use chemipure, purigen or skimming only. Plan to have small fish like centrpyge angels Damsels, blennies, gobies small wrasses etc. No Tangs Please offer sugestions. Thanx.