Quote:
Originally Posted by karimwassef
Word of warning - I have crashed my tank when I took my air injector offline for maintenance for too long.
It serves a key function in eliminating the bias due to CO2 fluctuations in a closed space. Like a limiting diode, it keeps the system stable by avoiding excursions that aren't real.
All it took was one day where my normally 400-500ppm CO2 to get up to 1000 for a couple of days - and my pH got pushed too low, driving my loop to inject so much Alk that it jumped from 8.5 to 11... predictable results after that... 
Everything is back in good shape now  |
Hang on, this almost sounds like the type of control I had originally assumed. Does this mean that when the injectors were off line, you (closing the loop) upped the kalk dosing too high based on faulty readings?
Are those photos from before or after the crash? If after, that is pretty impressive, as the crash was not that long ago, and that is some serious growth.
Dennis