Having a lot of algae breakouts wondering what everyone's settings are??
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You will need to get Light, Ferts, and CO2 in balance. If they are out of balance, you will get algae...big time. You may want to start adding Seachem Flourish Excel as prescribed on the label on a daily basis to get algae under control. If the algae proceeds to take over, you can increase your dosage up to 1ml per gallon per day. If you have invertebrates you may want to use caution.
An increase in light can help in fueling algae growth when you already have parameter issues, but this isn't the root of the problem. Cutting the lighting back can help, even cutting the red out of the spectrum could as well, but it is the nitrates and phosphates that are the root cause.
There are two articles in my signature that can help you with your battle, but you will want to use ro/di water in your top offs and water changes, minimize feeding, effectively skimming, so on.
Algae control in salt water tanks - Aquarium Advice
Another View on Algae Control - Helpful Tips - Aquarium Advice
Keep in mind that battles with algae are long ones. For example, if your nitrates are at 40, a 50% water change will only bring them down to 20! This is why it is important to ensure that the water you are doing the water changes with is 0, why we advocate using ro/di as there isn't anything in it at all that could be harmful or cause issues. Tie that in with feeding sparingly you can overcome the issue with time.
Also keep in mind that some algae isn't bad. There is algae in my reef tank. This comes from my use of distilled water, but there are some things that we can't avoid sometimes in life.
Just out of curiosity, what are you running your radions at? I run mine at 60% intensity.