P Prosmokerbutagrowjoker Member Jan 16, 2013 #1 Ive only got one of those cheap ph testers where it changers colour, are they any good? on my last grow i made it greenish yellow colour which i believe is between 6&7 any help is appriciated thanks.
Ive only got one of those cheap ph testers where it changers colour, are they any good? on my last grow i made it greenish yellow colour which i believe is between 6&7 any help is appriciated thanks.
The2TimEr Well-Known Member Jan 16, 2013 #2 For soil, if you can get that bright orange / yellow at 6.5 that is perfect. For hydro look for 5.5 - 5.8
For soil, if you can get that bright orange / yellow at 6.5 that is perfect. For hydro look for 5.5 - 5.8