i would say the bulbs are ok, but yes bulbs can contribute to algae growth, however in your case with 3 month old bulbs probly not, even if they are cheap bulbs.. in any case replacing bulbs will not take away the hair algae..
to get rid of hair algae you must first find the source of what is feeding the hair algae.. you use ro di? how much you feed, how many fish you have, how much flow, how are your rocks set up? all this plays in to the hair algae.. how is your maintenance been, has your sand bed been siphoned reg...
also its a newer tank and this happens in newr tanks, dont give up you can get it under control.
to get rid of hair algae you must first find the source of what is feeding the hair algae.. you use ro di? how much you feed, how many fish you have, how much flow, how are your rocks set up? all this plays in to the hair algae.. how is your maintenance been, has your sand bed been siphoned reg...
also its a newer tank and this happens in newr tanks, dont give up you can get it under control.