Need some calcium reactor help! A LITTLE HELP WOULD BE NICE

[vanreefer]

Originally Posted by Railskinner

last night i dropped the co2 rate to 30 drops per minute and alk has dropped to 13.4
i turned up the drip of efulent a bit , almost a steady run.This morning i noticed that the efulent has raised to 7.7 on the Ph probe.Would this cause the PH to raise as now that there is more flow thru reacter because of drip rate is higher?
Also should this lower the alk reading as well?

Exactly Ph has gone up because the amount of CO2 inside the reactor is less Co2 is only lowering the PH to allow the media to disolve
It looks as though the reactor was fairly close to what you wanted just too much alk and maybe a bit to high on the ca... I would go to about 45 bubbles/min and an elffluent of still around 100-120 drips /minute

Decreasing the Co2/(increasing the PH) will slowdown the disolution of alk... slightly decreasing the effluent rate will lower the Ca disolution... I would also try to raise your Mg as this is vital to maintaining ionic balance of Ca and Alk

[Railskinner]

i will give a test of all the parameters tommorow morning
i"ll get the mag up to 1350 ish.
set the co2 rate at about 45/minute and the drip of the efulent at about 120
/minute. Ph of the efulent is at 7.6 atm (11.40 pm)
hopefully i'll get the alk back down.

[Railskinner]

finished testing this morning
Salinity 1.023
mag 1360
calcium 440
alk 11.8
efulent ph 7.4
45/co2 120/drip
Seems that the ph probe reading will not drop any lower
i recalibrated the probe this morning thinking maybe it might be out of wack.