Switching from well to RO water

As of now, in my tank, I have just been using well water straight from my outside spigot, along with seachem prime to condition it. However, I am about to install an RO system into my faucet in my kitchen. Should I gradually make the switch to RO water? I know that I would need some seachem equilibrium to use with RO water.

 

It depends on the parameters of your well water and what fish / inverts / plants you intend on keeping.

If you want to go with RO, I would skip the Equilibrium and dose:

CaSO4 for Calcium / GH
MgSO4 for Magnesium / GH
K2CO3 or KHCO3 for KH

It's the cheapest and "simplest" way of remineralizing RO water.

rotalabutterfly nutrient dosing calculator found online can help you determine how much of each to dose into how much water to get the numbers you are looking for.

For Ca, 30ppm is a good starting point.
For Mg, 10ppm is a good starting point.
For KH, 0.5 degrees - 1.0 degrees is a good starting point.

This will result in water with a KH of 0.5 - 1.0, a GH of 6-7 and a pH of 7.1-7.2, and low TDS. Ensure you are consistent with your water prep. Make sure you dose the same amounts into the same amount of water changed each water change. Dose them into a container prior to adding the RO to the tank to avoid any shock.

I suggest buying a $20 jewelry scale accurate up to 0.001 grams that comes with a calibration weight for measuring out your reminerlizing compounds.

 

If your tank(s) are doing okay with the well water I'd keep using it. "If it ain't broke don't fix it." By the way, why do you use Prime with your well water?

 

If your tank(s) are doing okay with the well water I'd keep using it. "If it ain't broke don't fix it." By the way, why do you use Prime with your well water?

Better to be safe than sorry. I haven't tested the water itself in a while, so I figured it would be cheap insurance

 

I'd keep using it.

I happened to get a TDS pen (needed something better for checking water change water temp) and freaked the heck out. I've got 425+ coming out of my tap, and over 500 in the tank. Not a huge proponent of TDS as a metric worth tracking for the most part, but I'm suddenly finding myself in the RO/DI market. I'm not looking to get numbers down to sub 100 tds or anything, but I don't think that's safe long term for fish to live in. It's barely safe for drinking (600+ is bad according to this meter).