03-15-2004, 01:28 AM
Join Date: Mar 2004
Location: Alachua, Fl
iTrader Positive Rating: 100%
I would suggest you get a kH test and actually measure your kH more accurately. If it is 0-1, the buffering capacity in your tank is virtually non-existant. That could explain your pH fluctuations. Also, as was mentioned in the prior post, with nearly 3WPG, and no CO2, you have major algae issues just waiting to happen. With high light, you need to set up a balance between your nutrients and your plants.
Having said that, you do need to know your kH accurately to add co2. If your kH is below 2 you will need to add something to bring it up before you add co2 or else your pH will plummet. Do a search about this, there is plenty of info on raising kH in your tank.