would carbon in your filter stop..

Brief：
i have added ph lowering stuff to my tank and it wont lower i have a filstar filter outside the tank could it be the carbon in the filter that is stop.. 

i have added ph lowering stuff to my tank and it wont lower i have a filstar filter outside the tank could it be the carbon in the filter that is stopping it lower i have discus and the ph is too high they have laid eggs 6 times but they are no good any help appreciated thanks

No, carbon in the filter will not stop pH buffers from working. A pH buffer stops the pH from changing, it doesn't lower it. Maybe that is your problem. Are you sure it is a buffer? There is a chemical called "pH Down" that works, but why do it with chemicals. Peat moss is the best way to safely lower the pH.

Put a ball of peat moss (the Michigan variety is best) in the filter so the water will circulate around it. Change the peat moss every week without fail. Live plants also will lower the pH. I have angels and apistogramma and without using peat or chemicals, the water is acidic enough for them to thrive. The angels have spawned three times. The apistos are new.

Both angels and discus come from the same general area in south America so the water parameters are basically the same for both. Neons like soft water too. cheese nibbles All you need to do is try to get the ph to go down w/o the filter running. Also when the ph goes down change the filter insides.

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