Personnally I use a solenoid, an inexpensive timer and a drop checker ( visual CO2 indicator)
Thatís right enough equipment for me and the only thing I have to do is to change my dropchequer liquid one time every 2 or 3 months, easy, acurate , inexpensive...
The first thing to look at when you want to play with ph is your KH (carbonate hardness)
10 to 20 ppm kh will give you a ph around 6.8, 30 to 40 will give you a ph around 7.2, 7.5. These are rough estimation. And all that magic without expensive equipment.
What type of water you want, acidic like amozonian or basic like african lake???
Last edited by Glouglou; 07-19-2007 at 02:17 AM.