Join Date: Jul 2012
Location: Carrollton/Lewisville TX
Appreciate all the replies. Like I said in the original post it is more of a curiosity thing as the shrimp are doing fine. I guess I am about $10, but not $100 curious so I will probably try out the Ebay PH pen. I have the API test kit both low and high range that I use for African and community tanks so I will use that to compare to the pen. If it is not reliable then I guess I will be out $12 and still curious.