I'm a big fan of organic!
The tank is still just sitting the way I left it, with a few more organic deposits, but in the meantime I finished off my 3d printing for my Float Switches, Probe Holders, and my DIY Breakout for my Apex Controller. Have a peek:
Float Switches:
Probe Holders:
The breakout box:
I only have 4 ports available which 3 are used for the float switches. Not sure about what to use for the last port. My thinking for the two buttons is the blue one is for Feeding triggering some events to return pump and powerheads, and the Red button is a full shutdown of certain components (I haven't wrote the routines yet).