? Bubbles in tank Good or Bad?
- Thread starter Larah
- Start date
raen
New member
This may be a REALLY dumb question/comment, but isn't the airstone pulling "room" air and blowing it into the tank. Room air, doesn't contain that much O2. Not sure of the exact percentage.
I believe it is 21%. So in saying this, doesn't an increase of the O2 in the tank poentially through of your Ph? May be a dumb question, just the nerd thinking too much!
I believe it is 21%. So in saying this, doesn't an increase of the O2 in the tank poentially through of your Ph? May be a dumb question, just the nerd thinking too much!
RicksReefs
New member
there are no dumb questions, just dumb answers...
that 21% is they key part, you can't raise the O2 level above household O2 point.
the problem is actually inverse, the more CO2 you have, the more carbonic acid is produced and the lower the pH goes. alkalinity has little to do with this (i.e. don't buffer for low pH, buffer for low alkalinity). aeration actually helps to off gass the CO2, allowing more O2 to be held in solution. but, if your house is cronically high in CO2 (closed up air conditioned houses, for example), you never reach O2 saturation and can have low pH while having spot on alkalinity.
that 21% is they key part, you can't raise the O2 level above household O2 point.
the problem is actually inverse, the more CO2 you have, the more carbonic acid is produced and the lower the pH goes. alkalinity has little to do with this (i.e. don't buffer for low pH, buffer for low alkalinity). aeration actually helps to off gass the CO2, allowing more O2 to be held in solution. but, if your house is cronically high in CO2 (closed up air conditioned houses, for example), you never reach O2 saturation and can have low pH while having spot on alkalinity.
Adding oxygen to a tank that already has adequate air exchange is very difficult ... further "adding oxygen" has zip to do with controlling cyano.
Cyano is a bacteria which tends to thrive in tanks that have phosphate ... often caused by overfeeding, overstocking, inadequate water changes etc.
Plenty of threads on cyano.
Cyano is a bacteria which tends to thrive in tanks that have phosphate ... often caused by overfeeding, overstocking, inadequate water changes etc.
Plenty of threads on cyano.
