Quote:
Originally posted by King-Kong
Let's look at a Ca reactor first.. what is necessary for that media to release alkalinity and Ca? EXTREMELY low pH (achieved by dumping CO2 into the water). A Ca reactor without CO2 does nothing, so why do we then assume that sand beds do the same thing without the incredibly low CO2/pH required to dissolve the media. I could be wrong, but havent seen anything otherwise.
|
and what is the effect on PH as oxygen levels are reduced/depleted?
the effect is minimal imo, but given proper depth they can offer some buffering capabilities.
...didnt notice all the cardinals before, those look great
