Just returned from first weekend away since I set up reef tank and 2 corals knocked upside down in the sand and tank very cloudy can not see to other side ammo 0 ,nitrite 0 , nitrate 4ppm , calcium 480 , alkalinity 128 ppm phos 0 ,ph 8.1 I use all Hanna test kits and redsea pro nitrate so I know...