tank has been up about 2 months and i think ive got my first bloom. brown algea turning to red some rocks even looking like they are turning a Lt. purple. my nitrates are up as well as ammonia. tank has been like this two weeks maybe three water changes help for a day then algee gets worse. several snails have died could this be a cause. i feed every three days i have 3 chromis and a lavander tang. just looking for sugestions do i wait or is there a problem????