Quote Originally Posted by LOC NAR on probation
It maybe good for fish that need acidic water and yes it could control the PH.

However it is totally going against what a plant need the most in the root zone 02. The green of the plant needs the c02 and from what I have heard it is not a good idea. Of coarse there is always some one who tries it. It would be interesting to know for sure if you have a grow you can take a chance on killing.

I think I would go with the auto PH system. It works the same way with a constant meter and a tank of PH up and down.
Hi LOC NAR,

Thanks for answering my question. I wonder the set up is okay for soon to be running growing system.

Below is A list of things I'm using soon:

Rockwool: as my growing medium for my drip system.
Timer: I'll set my timer 3 times a day, 15mins each time (the smallest unit on my timer is 15mins)

Pump: A 800 Liter/hr semersible pump (it's power enough) which pumps up nutrients to feed my plants that are growing in rockwool.

A digital PH/CO2 meter controller (US:69.95 on Ebay) with a CO2 bottle that will constantly adusting the PH level of my reservoir by pumping CO2 into my reservoir.
****Here is an exapmle of PH/CO2 meter on ebay:
DIGITAL PH/CO2 CONTROLLER/METER AQUARIUM/FISH TANK P10 - eBay (item 120382169954 end time Mar-24-09 03:08:14 PDT)


An air pump with an air stone which will constanly pump O2 into my reservoir.

Nutrients: I'm using an US brand nutrient powder called "HYPONeX " (30 - 10- 10 NPK and This is what I can get right now) to mix with distilled water (one gram/ liter) but I'm going half or one third strength in the first 3 weeks for seedlings, then go full strength.


I'm not too sure if the set up is correct, or if there is anything wrong with this whole set up. Maybe the digital CO2 controller does't go with the air pump with an air stone (and they cancel each other's Co2 and O2 in reservoir ???? ) or maybe something...

Any advise would be a great help.


Thanks