I converted into a reef. 45 gallons+sump/fuge 10 gallons. T5 4 bulb(actinic2X\daylight2x), remora aquacpro+ mag3, 2X mj1200, cpr overflow 300 gph, kalk additives, cheato+, phosban, more...Water changes more often when started dosing kalk. 1nce weekly. 3-5 gallons. battling top offs.