Juan, I run the reactor with a master flex. It has the potential to be a great system. The k2r has been better than my MRC. Pretty simple reactor... it’s probably 20 years old! The eheim pump still runs silent.
I am thinking of going to three part. Mostly due to being out of town a lot and having problems with forgetting to get co2 and such. I hate to have my wife test and have to make adjustments to the calcium reactor. I guess user error is my problem lately...
I got a nice parastalic pump that I can control from a far. My wife and kids are good at testing alk and can call convey that info.
I am definitely NOT selling the reactor, master flex or the aquarium plants regular as it is an awesome combo. Time will tell what I’ll Really end up doing. I have no problem recommending the k2r though. I’ve grown a lot of coral without ANY other supplements with the thing. Just good old halides and water changes. (10 gallons a week)