diatom problem

[marvinsae]

i'm staring to notice some "brown algae" or diatom. everyday it seems to spread but i've read up on it and it says its normal after cycling and it should disappear as fast as it shows up. i guess my tank isn't well established yet. should i wait it out or go purchase more snails. i've been doing regular water changes. i'm a bit confused though, some say increase the light, others say do a black out. im just worried how it would effect my maxima clam. other then that i have no corals YET.