Saltwater changes

[rnb62679]

Ok I am about to do a water change, do I need to test the water I am adding to the tank first or do I add the water and then test the my tank? I let my new water sit next to my tank since yesterday, anything special I need to do?

 

[Rutrag]

Definitely check your specific gravity. You don't want to turn the tank brackish or into the Dead Sea either. Checking pH is also a good idea in case there's a big swing.

Are you using RODI water? If not, you should to avoid algae problems. It's a good idea every now and again to double check the nitrates and phosphates of the new water to make sure it's clean going in. I'm sure a few folks on the boards can tell you about their RODI filters wearing out and not realizing it until they were seeing problems in the tank.

 

[rnb62679]

My PH on my new water is at 8.8 a little high how do I bring it down or is it ok to add the water in that way?

 

[Rutrag]

What does your pH run in your tank?

 

[Ricksreef]

Make sure your SG is correct and that your temp of the water matches.Your PH will be higher in the replacement water because of new water having a better mix of calcium and alk.

 

[Carpious]

As above, ensure your temp and salinity are the same, then add away.


Assuming that the source is reliable, of course.


I have done it that way and have had no issues.

 

[melosu58]

I would go ahead and add it and then test your tank water.