I don't know of an all in one kit for everything you need to monitor in a reef tank. I like the Salifert kits best, but they can be hard to find at times. Seachem has multi kits that cover several parameters. I have used them and had good results with them. The Marine Basic includes ammonia, nitrite, nitrate, pH and alkalinity...I think. The Reef Special includes silicate, phosphate, and iodide.
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