Calling all Apex gurus...

[SweetReefOH]

I am planning out my 40B build. I have the new Apex system on my main setup and want to be able to run the new build off of it. If I am understanding it correctly, I would need a PM1 module with an aqua bus cord to connect to my apex. I would need an EB that would then connect to this PM1 module? I would need the pH probe and temp probe that plug into the PM1 module. Then I would also need a PM2 module along with a salinity probe to plug into it.  Is this correct?

[CoralBeauties]

Im far from an guru but I think you are correct in your thinking.  You will need to set up your monitor to read what you want from each tank or separate screens for each tank.
Jeff

[Wall_Tank]

All of the modules are aquabus, so you just daisy chain them together.  You do the programming, the Apex doesn't care what tank the probes our outlets are.  I wouldn't waste my time with the salinity probe, there are too many sources for error to trust it.

I have 3 tanks on my system, although one of the tanks is just lights and skimmer on/off.

[SweetReefOH]

Thanks Jeff, Paul....good information. I think you’re right about the PM2 & Salinity probe. And that’s  $210 right off the top. Now I just need to think about which one would serve my needs. Thanks again guys!

[CoralBeauties]

I see pm1 modules quite often on reefcentral and r2r for about $60 shipped, eb8 for maybe $130. You would then just need to pick up a temp and ph probe.  Actually I think Paul has an older dc8 and dc4 for sale which works with a phone cable that plugs into the main controller.  I think it works pretty much the same as the eb8 except it wont monitor the amp draw.
Jeff