I'm in the planning stages of my first real planted tank. It's going to be an ADA Mini M with an Ehiem 2213 canister filter. There will be an in-line heater and ceramic CO2 diffuser to help keep equipment out of the tank. I have a left over Reef Keeper Jr from my saltwater days and I would like to use the ph probe to control my CO2. Are they any ready made solutions or DIY plans for in-line probes? Or is this a disaster waiting to happen?