Hey.. I'm just just curious to everyone's input on best dosing system for value comparison. I have no plans to run it via an Apex system or controller system. Looking at stand alone dosing systems. Possibly looking at using it to do auto top off as well. System is a Miracle's 300 gallon deep dimension with a 120 gallon sump I built. Most likely adding on a mangrove tank and small frag tank to this system down the road near future. Thank you in advance for any of your values and educated input.