switching from tap water to RODI

[Lyndya]

I'm in the process of switching from conditioned tap water to RODI. Do I need to add PH or anything else to make up for what the RODI filter takes out?

 

[redfishbluefish]

Nope! I'd suggest adding a TDS meter with two sensors....one after RO and one after DI. The DI sensor will tell you when your DI resin is shot.

 

[mfinn]

I'm in the process of switching from conditioned tap water to RODI. Do I need to add PH or anything else to make up for what the RODI filter takes out?

No, just go for it.

 

[Mr tap water]

If you have any corals I would advise keeping an eye on your Kh when changing from tap water to RO as you may see a drop

 

[SantaMonica]

If by chance for FW, you might need to add some minerals.

 

[AZDesertRat]

Nope, your salt will contain every thing you need until such time as you are heavily stocked with SPS stony corals and regular testimg shows you have a demand for things like calcium, alkalinity and magnesium that your salt and regular water changes cannot keep up with.
For top off the amounts will be so small you won't need to buffer or add anything else.

 

[Mr tap water]

If by chance for FW, you might need to add some minerals.

As I've said before your Kh will drop a lot faster because you've been using tap water and because you've been topping up with tap water has helped keep your KH higher once you start topping up with ro water that will no longer happened and may have to use a Kh buffer to help stabilise things ,regular water changes and adding salt will help but will not keep it stable throughout the week all this said it only applies if you have a number of corals

 

[Lyndya]

Thank you. I did forget to mention it is a Marine Aquarium and Yes I do have quite a few (about 30) corals.