04-09-2007, 04:32 PM
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well, for your mix a nice flat 7.0 is prolly best. if you dont want to use chemicals to alter it(bad news cause fish do better at a higher ph and a stable ph instead of a ph fluctuating with chemicals). a buffer to make the ph less is a good way to go when doing water changes, add some buffer to the water. when you add the same amount to the water each time it drops the ph slightly in each dose, much more stable than the chemicals you buy at the store.
however, if you dont want to use a buffer...I have one word for you: DRIFTWOOD!
lowers ph steadily and slowly.
on to my next concern...how big is your tank?
those plecos get HUGE!!! if its less than a 300 gallon I wouldnt keep them...bristlenoses are one thing...common plecos are another.
also, that raphael catfish grows to a whopping 12"...biiiig fiiiish...same with the african pike you got...
is this like a 900 gallon tank or something?