ok i have a 30 gallon sw tank (ok i know its small) i let it cycle for a month i then added 2lbs of live rock 3 blue claw hermits and live sand itook the readings and everything was normalone week later..i added 8 lbs of live rock and today my ammonia is at 0.6 and my nitrite is at 0.2 my ph is still good at 8.3 and my salt is still 1023 what can i do about this also my beautiful fiji rock is getting this white stuff on it and my purple coraline is starting to look funny i have a coralife 2 bulb 65w light fixture --a ehiem 2213 with a surface extractor and 2 airstones with a rena 400 pumps-im very fustrated can someone help me on this thanku..