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Old 08-09-2005, 09:25 PM   #62
nim75sg
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Quote:
Originally Posted by zongling
For fresh water fish tank like mine what should i set?
Depending on what type of fish, any ORP reading above 500 is considered to be very clean water and whereas tap water is around 200s.

This is applicable to fresh water aquarium tank keeping.

Quote:
Originally Posted by Ariel
Bro nim75sg,
Now I m getting reading in 500+ , and I m trying to introduce "dirt" to bring now the value, past few days, I finished one bottle of "AZOO bacteria", managed to bring down to 460~490 range.
No need to bring down liao .. your water is in very good condition since you're having a freshwater tank.
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