I have a kit a bought as a back up to my meter. You fill the vile with water add three drops of solution and check the color. no paper.
taphead Reviewed by taphead on . just about to start using new hydro kit have successfully germinated 10/10 'ice' seeds ready to go into my hydro kit. all I nmeed to worry about is teh nutrients + a ph kit does anyone know where I can get a decent kit and does anyone use ordinary litmus paper>?????????? I will be using a 400 hps + a 100 hps for veg will a regular timer be ok with these lamps or will I need a contactor?????? Rating: 5