Typical setpoints would be to begin the CO2
flow at a pH of 6.8 and stop the CO2 flow when
the pH of 6.6 is reached.
The
PINPOINT
pH Controller
:
-will automate the proper pH settings inside the
calcium reactor
-save CO2 by using it only when necessary
-save aragonite by keeping the pH levels in the
proper range
-allow easier adjustment of flow through the
reactor by keeping pH in the proper range
through a range of different fluid flow and CO2
volumes
•
Aragonite
-Basically coral fragment. You should
find the pH levels that will dissolve the aragonite
most efficiently. If the pH is too low the
aragonite will turn to “mush” and no longer have
flow through it. If the pH is too high then the
aragonite will not be dissolved sufficiently.
To optimize reactor efficiency experiment with:
-lower pH settings to dissolve more aragonite
-Increased CO2 flow to the reactor
-decrease (or increase) the water flow through the
reactor
-install an aerating powerhead in the sump to drive
out the CO2 gas and return the effluent to normal
seawater pH levels before returning to the
aquarium.
Discussion:
Some hobbyist want to place the pH electrode
directly into the aquarium water. Their objective is
to use the pH controller as a safety device to shut
off the CO2 gas in the event the aquarium pH
becomes too low because the effluent containing
the CO2 is being introduced back to the aquarium
water at too fast a rate and/or without proper
aeration.
Pros:
-You can use the PINPOINT pH Controller to
monitor the pH of your aquarium
Cons:
-CO2 gas will be infused constantly whether it is
actually needed or not
-You will not be able to monitor the pH of the
seawater inside the reactor.
-Flow rate and CO2 input to the reactor will be
more difficult to adjust and therefore the reactor pH
will more easily be “out of optimal range”
frequently too high or too low.
