Nice score! I'm looking forward to this build 
Ya they're pretty awesome.wow they have tank calculators....
Leucs and auratus don't get "lonely". Frogs don't have emotions like us, and besides breeding, don't really care being alone. Leucs and auratus are usually put into groups because people like to see more frogs in their viv, and frogs like leucs and auratus tend do better in groups than say tincs.Wow, that's a lot of room. If you folllow the thumb rule of 1 dart for every 10 gallons, you could fit just about 4 darts in that thing. Or you could just have one dart in the cage, and it would have alot of room to itself, which depending on the species,(leucomelas, Auratus) it would get kind of lonely, because they like to hang around in groups.
Nice tank, though. What kind of dart are you planning on putting in it?