Ideas on growing algae in my sump

rogersb

Active member
So I have an area of my sump that is lit with t-5 bulbs and they are getting around 2 years old. Today I was thinking of replacing them then had this idea that when we have algae problems one of the first things people ask is how old the bulbs are. They are blue plus and blue special. Would you replace them or should I be growing more algae the older the bulbs get?
 
This is just a guess abut I'd bet a new 6500k bulb you could get cheap at lowes would be a lot better for growing algae than an old blue plus with a spectrum shift.
 
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