ph problem too low. cant get it up
 

my ph in my tank is going to 7.8 all the time. how can i bring it to 8.3 to stabilize it.

i am using a ph buffer and this does not seem to bring it up at all.

sometimes if i use more of the buffer, i am able to bring it to 8.4 and then it goes back to 7.8 the next day.

what's your Alk at?

That's what I was going to ask. Also what size is your tank?

Your pH probably goes up and down in a daily cycle. Measure it right before your lights come on and I expect you will get a much higher reading. I don't think you should be attempting to do anything with your pH and I suggest that you stop adding that buffer (assuming this is the only reason you are doing it).

alk
 

dont know what the alk is at. dont have a test kit

ph
 

i keep hearing that the ph must be a constant 8.3 so that is why i am adding the buffer. i want to keep it at that. mine is at 7.3.......

would a tnak cycle cause ph to do down. my tank is new

Yes, a tank cycle will lower pH. The acids building up will cause this. And if it's at 7.3, I'd check your meter. At that level, the rocks will start dissolving :)
Once cycled, your tank will go thru a pH cycle everyday, due to photosynthesis of the organisms kept. This is both normal and ok. My favorite story of solving pH problems was to throw my meter away. Never had another issue.

you need one. And Ca. get rid of the pH kit. Trade it for ammonia to get through your cycle.

I was just about to test for PH on my month old tank... this is a useless test? I do have tests for Ammonia and Nitrate, both tested very low.

Here is a link for ya. Start reading.:razz:

http://reefkeeping.com/issues/subject/chemistry.php