Reefrancher, no probes yet but did DIY low and high water level alarms to shut off the pumps. along with an auto top off from
www.livinglava.com - researching DIY test probes and 'think' I found a decent site, but havent dived into it yet. looking for an auto water exchange syste, anybody got ideas. I need this thing somewhat automatic since I'm a busy dude and travel alot on occasion. need to make it easy on my reef sitter (wife). lol