Question 2, water flow and designs for reef tanks

[Johnny Reefer]

Originally Posted by Johnny Reefer

So, I took the term “Variable Speed Control” to mean that if this PH (6100) is plugged into the controller, and that controller is programmed, that the PH’s flow rate would fluctuate throughout the day (and night) independent of any further fiddling from the aquarist. Now I’m thinking this assumption is incorrect. Am I now correct to assume that the controller is not programmable, so to speak, and that if I were to want to change the rate of flow of the PH that I would have to adjust the controller each and every time?

Also, other than during feeding times....what is the advantage to having the PH turn off?

Anyone?

Thanx,

[vanreefer]

Originally Posted by Johnny Reefer

Anyone?

Thanx,

maximum and minimum outputs are adjustable, as well as the time between Example
min-->max-->max-->min, or
min----->max----->min----->max... or anything in between.
This changing in output make more "wavelike" current