Old Town only sells the whole kit (Red Sea), New Fish doesn't have Mg at all, Petco has nothing good. Any ideas of where I can get one in the city of Chicago (not suburbs)?
I already have an order in with PA for a RKL+, a Dosing Pump, and 4 filter socks but we are waiting for them to get the RKL+ in before they ship. Ground shipping is like $9 extra on a $20 test kit that I will only use once every month.
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