donbilbo your setups looks really nicely organised. Maybe I'm missing the obvious but I can't see where the connecters are between basins? Did you drill through the glass, use pipes etc?
Akel, good to hear you're not having trouble with your Polyrhachis dives, is that nest what they came in or have they weaved it since moving in? With regards to feeding them sweet things (i.e fruit) I've found it best to just use sugar/honey water concentrates, with occasional little chunks of fruit. Large bits tend to rot and are difficult to clean/remove when they have lots of ants camping on them
Best of luck!