I like Salifert or Red Sea. I have several titration tests for FW
I also like the Hanna PO4
checker. Can't beat it if you are planning a reef setup and want to know how much PO4
is actually in the water. The PO4
titration kit is just too hard to read accurately at the low levels you are trying to detect.
I also use a Milwaukee SMS122 for a pH meter, so I can constantly monitor the pH, as I am lazy and don't like to do testing any more than I have too