Water is in the tank! By setting up the filter loop first then slowly filling the tank I have almost no sandstorm and my filter loop will (hopefully) start filtering out the main tank water as it mixes. The tank water as it filled turned a very light green and it was starting to cycle itself. Ammonia is greater than 0 but less than 0.25.
The start of my ac3 pro wiring. Yes its a mess
Filter bag and probes floating in sump:
Look ma, its a waterfall:


The start of my ac3 pro wiring. Yes its a mess


Filter bag and probes floating in sump:

Look ma, its a waterfall:

