Hi TJ and welcome to the forum. I would probably bump the cya up a little to around 40, but go slow. If you get it too high, the only way to lower it is to do a partial drain. As far as the CYA test, they are all the black dot test. it is subjective and definitely the hardest test to read, but you get better with practice. BTW -- I'm assuming that you meant that your FC was 5 and not your CC.
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