It is the cumulation of all items amperage hooked up to the EB8 that determines the trip point. You need to calculate the total amperage draw from all the equipment plugged into the EB8. If you are close to or at your threshold, something will likely trip the EB8. So, no the CaRx, in and of itself cannot cause the EB8 to trip unless it has a short. Plug in the reactor and everything else BUT any random piece of equipment not critically controlled by the Apex. Place that one random piece on a standard outlet. If the EB8 still trips then it is likely one of the pieces that you have plugged in. At that point, keep doing the same thing with all your pieces of equipment until you find that is no longer tripping your EB8. Process of elimination. It is then, likely, that piece not plugged into the EB8. Another option is to test for stray current in your system with an ohm meter. Another option is to ground your tank with a grounding probe, which all tanks should have, and be certain that the probe is connected to a GFCI protected outlet. If there is a short or current it will trip the GFCI. Keep unplugging equipment till the unit no longer causes the GFCI to trip. That will tell you if you have stray current. If all this fails...