jimenezcdt420
tooth dr 420
- Joined
- Mar 14, 2011
- Messages
- 80
- Reaction score
- 1
as i been learning little by little from here,so educational better then the history chanel. i have a hydo system and need to get a ppm or tds meter ,which easyer to use or sugest to buy im always ph-ing down to 5.5-5.8, 2 times a day. i want to feed but dont want to fry them
