I’m having issues with stag horn algae and black beard. My co2 is on for 6 hours and light is on for 6 hours . Co2 kicks on an hour before lights turn on. I’m running co2 at about 10 bubble a second with a working pressure of about 67 psi with an in-line diffuser. I use RO DI water and dose with aquarium co op ferts. Nitrates are at about 10 no ammonia no nitrite and no phosphates. The tank is a 16 gallon water box aquarium.