Kh question

[i love fish]

If you system consists of fish and afew crustacians, then do u really need to worry about the Kh, coz i can't seem to get mine to go up no matter how much buffer or how often I use the buffer.
The Kh is stuck at 7 degrees dKH and will not budge abit.
thanks

 

[geoj]

7 dkh is on the lower side but is still ok for fish and crustaceans. Just keep it at 7+ and test pH

 

[tank a holic]

test your calcium and ph, along with kh they all go hand in hand
there is a good chance that they are not at the correct levels and thats why your kh wont go up
buffer is usually a quick fix and not a solution dont rely on it