I don't want to spend about $200 for the parts that I know nothing of...
what does these things do????
Regulator,solenoid,needle valve and co2 tank? (then attached to a bubble counter???)
The following items can just be plug and play????
picture is for reference (does not included the ph controller (in the middle) and the co2 reactor on the top)

what does these things do????
Regulator,solenoid,needle valve and co2 tank? (then attached to a bubble counter???)
The following items can just be plug and play????
picture is for reference (does not included the ph controller (in the middle) and the co2 reactor on the top)
