Good to know it doesn't fluctuate! I just added the IM Refugium to that chamber to grow pods for my pink streaked wrasse and tank. I'm glad the water isn't draining from them with every water change! I would have used that chamber if I wasn't already using it.I have the 25 Lagoon, using the AWC as well... I have my heater in the second chamber from left as that water level doesnt fluctuate.
How do you like the AWC? I'm finding that the ATO works perfectly but I've only used the AWC manually so far. I plan to program it for when I go on vacation though. Have you had any hiccups?