Hi bro. just to share. i just had my tank cycled too. its been running about three months now. for the first month, diatoms was blooming like fireworks. so this is what i did.
Got a pair of sand dollar for the sands.
Gotten three turbo snails for the live rock and glass.
On every other day, i regularly brush the diatoms off using a toothbrush.
I realised that the more the light is on, the more the diatoms will grow. So i decided to do a water change and the diatoms are gone. well, not 100% gone, but atleast i would say theres a decrease of atleast 80% of diatoms in the tank.
Well, this was based on my experience. Not sure if it will apply to everyone in particular.