10-02-2013, 10:31 AM
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Originally Posted by jc88
So my tank has been going for a week with 2 goldfish in (suggested by pet shop even though want to start freshwater tropical and didn't know better at the time).
But my pH is 8 (tap pH 7.0) and ammonia, nitrites and nitrates are 0... Does that mean my biological filter is working correctly?
Thought it was the stones causing high pH: its not the aquarium checked they are just painted quartz and theres just some live plants everything is fake ornaments! Ive done water changes 20% and the drops slightly but back up the next day
The aquarium store thinks its new tank syndrome but they still don't know why everything else is 0 and that some ammonia should be detected by now??
Live plants will prevent the ammonia spike and raise the PH.
PH rises because the plants suck out the co2. So I always measure pH just before lights out. PH will be lowest just before lignts on. A high pH just before lights out indicates the plants are processing the co2 so the tank is a net consumer of co2 and producer of oxygen each 24 hour period.