It is critical to call attention to lighting being one of the fundamental drivers of algae growth in (natural/synthetic) sea water aquariums. Obviously it necessitates that nutrients are present for the green growth to expend, however simply changing the lighting is now and again the only fix required.
As bulbs get more seasoned they radiate an alternate shading light. So albeit a fluorescent light may still run following two years of utilisation, the power and shade of that light has changed essentially. Changing the bulbs might be the main thing expected to address a algae issue (and can seem as though you have a brand new lighting unit).
The other issue is photoperiod of your (natural/synthetic) sea water aquarium, the measure of time the lights are on. Many people keep the lights on throughout the day. They turn them on when they wake up and turn them off when they hit the hay, or have a clock that does likewise. Be that as it may, this is A LOT of light for most aquariums, and you likely aren’t around the majority of the day to appreciate your (natural/synthetic) sea water aquariums in any case. Rather, put the lights on a clock and set it to turn them on for 8 – 10 hours and you should do this for when you will really be around to appreciate the fish. This might be something like 2pm to 10pm. The lights are on for much less time every day which can totally fix numerous algae growth issues. This will simulate the natural cycle of daylight. Any other time frame could stress the fish and may even lead to un-wanted disease in your (natural/synthetic) sea water aquariums.