nebraska reef
Member
How often should T-5 bulbs be replaced? I am running a nova extreme pro with 2 daylights and 2 actinics and 4 leds, a marineland T-5 deluxe with 2 daylights and 2 actinics for a total of 432 watts. They are the bulbs that came in the fixture and are about 11 months old. When should they be changed and what bulbs should replace them? My tank is 90 gallons. Lights are on a timer 2 actinics are on for 9 hours and everything is on for 8. Is this right?
