So I have 2 ph probes and a orp probe but only two probe connectors. ?????????????

Guess I have a salinity probe than I never knew. Not sure what for though. :lol:

I have 6 probe holders in my sump and they are all full....:lol:

I like the salinity probe. Its easy for salinity to wander. At least for me.

I have no use for ORP. But Temp and Salinity are the two I'd want for sure. And I'd have the two PH probes if I was running a calcium reactor or kalk, But I dose two part ... so PH isn't very important for me.

I still need to figure out how to run 2 ph probes and a orp probe at the same time

Pretty sure you can't.

The 2 connections on your base unit work like this:

1 = pH only.
2 = pH OR ORP. (You have to select which one in the setup menu)

So you can either run 2 pH, no ORP, or 1 pH & 1 ORP.

That is to the best of my knowledge at least. :lol:

This should allow me some expansion ?
http://www.reefsupplies.ca/online-st...odule-PM1.html

It would if you've got one... I'm guessing it's part of the Gold package?

Apparently not.

What's another $90... :lol:

Agreed. Perhaps I can change the couple hundred extra for useless parts for one of those.....:lol: