12-03-2002, 05:23 PM
I read with interest the threads over the past while regarding tds and conductivity meters...Alot of people recommended conductivity, but unfortunately i couldn't find one with an adapter in my city, and i didn't want to do mail-order....so i got a TDS meter to be difficult...
I was thinking the .5 scale was inaccurate because my tap water reads at 320 TDS so that would make the conductivity over 600!! I've bred angelfish in that water so it just wasn't adding up...
So, anyways i went over to Dave_C's place today to check out his new fish from Cary and took my meter...Measured with my meter, measured with his conductivity meter...his reading was exactly twice my reading...
So, to make a long story even longer, at least in the case of my TDS meter, the reading is exactly one half of what the conductivity is... :)
I was thinking the .5 scale was inaccurate because my tap water reads at 320 TDS so that would make the conductivity over 600!! I've bred angelfish in that water so it just wasn't adding up...
So, anyways i went over to Dave_C's place today to check out his new fish from Cary and took my meter...Measured with my meter, measured with his conductivity meter...his reading was exactly twice my reading...
So, to make a long story even longer, at least in the case of my TDS meter, the reading is exactly one half of what the conductivity is... :)