Hi everyone and thanks for looking! I am starting the setup of a 135 gallon tank which I bought from someone. I tested the water that came with it and it is low on salinity and high on nitrate I think part of the nitrate prob may be that the tank's filtration was not running for along time although the fish looked to be ok. I did not take the two fish. What I bought was the tank, canopy, wet/dry sump, protein skimmer, power heads, crushed coral and water in a nutshell. I am not even certain if all of it works yet just got it all home yesterday. I plan to put in mh lights, and 50/50 fl's. and to only use a minimal amount of the water that came with the tank if I cant reduce the nitrates can you tell me the best way to do this and also how high away the lights should be from the water. Have never used mh lights before or how many I should us for that sz tank would be great will post more later thanks