Ohh, the ability to do two zones at once is really good. That single zone issue really put me off the idea.
If you use good old "ice cube" relays, you can run up to 3 things off of each of the 6 outputs, depending on how many sets of contacts the relay has!! 6 if you use triple pole, dual throw relays and run half of the items in the "on" cycle and half in the "off" cycle.
I think I smell a control upgrade coming...
Eheim Pimp #204.
58 gal planted Oceanic
Red Turquiose Discus, Japonica shrimp, assorted Blue Eyed Rainbows, Tetras, Hatchets, Danios, Rasboras
10 gal low tech planted Celestial Pearl Danio (Celestichthys margaritatus) & Emerald Dwarf Rasbora (Microrasbora erythromicron)