Hows it going ARC?Bulb?

[sprinklerman500]

The question is,how often should you replace your T5 bulbs?I have a 4 bulb 48 inch fixture with two blue and two day light bulbs that I got about six months ago and Im thinking these bulbs are old real old,I think the light should be brighter!I don't know any body better to ask so all input is nice ty Chris

 

[porpoiseaquatics]

The standard is to replace them annually. What most people do is get them on opposite cycles to it doesn't cost so much at one time. You have 4 bulbs so replace one every 3 months.