I just bought one on Ebay. I'm waiting for it to come in the mail. I asked one of the local reef maniacs about it and he told me rather than waste $25 on a pH pen, get a Pinpoint pH meter. I think they run about $90.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
