tds

hi guys, so i havent used my ro filter in around 2 months, im just wondering if i should change the membrane etc or if its still good to be used. thanks

This is my first post here (Hi!).. and hope I am posting to the right thread. My TDS in both my heavily planted 40g tanks are in the 1500 ppm range, and I do not understand why it is so high. My general readings for both tanks: KH 6-7 GH 8-9 Ph 6.8 - 7.0 Nitrate levels around 20 ppm. Nitrite...

Hi, I have been reading many threads concerning the measurement of CO2 concentration in a tank. Unfortunately I am still a little confused about the matter. On one hand I get the impression that all one needs is a drop checker and as long as it turns Limeade green, you have enough CO2 and of...

Hi, for under £30 - what would be the best TDS meter to get in your experience? Cheers, Lou

Not that I like researching the hell of each item I buy for my tanks, but rather I want to make sure I am getting the right thing for the job and not buying cheap and end up buying twice. So with my new shrimp tank project just kicked off, a kind member suggested I get a TDS meter off ebay...