Water test

[gareth.hubbarde]

How long after a partial water change would be ideal to test? Did 10% this afternoon, should I test tomorrow or a few days?

Sent from my SM-A310F using Tapatalk

 

[scooter31707]

IMO, about a hour.

 

[Blitzer]

Did you test right before the water change? The only reason to wait is for the new water to properly disperse... but if you tested right before, then all you'd see is a 10% reduction due to the water change.

 

[Ron Reefman]

+1 to both the comments made above

 

[mcgyvr]

In general you can look at the flowrates of your powerheads/return pump to get an "estimate" of how long it should take to turn over all the water in the tank..

So if you have a 100gallon system and pumps/powerheads moving 1000 gallons per hour then a good approximation is 1/10th of an hour or 6 minutes..
I usually just wait an hour or so..

 

[Dr. Reef]

30 min to 1 hr. Most tanks are turning over atleast 5 to 30 times over in 1 hr.