New Lights = bad diatoms

[b-baby80]

I got new lights a few days ago and now i have real bad diatoms.What can i do?

 

[worldwide zoo]

Up the number of turbos, astrea's, or margarita snails and keep the lights to a minimum. I'd say around 6 hours per day, increasing an hour every 2 days. The snails help a lot with this.