Darts are not great swimmers and will easily drown. Make sure you have easy access out of the water for them. Any pics??
I actually changed it up. I put my white's tree frogs in there since the plants were more like their habitat than a leucs. And i wasn't concerned about the water at all. I talked to a LOT of people about the water. Yes, there are plenty of places for them to get out. Here's a pic from last night before i put my guys in their new home. I do have other builds going, so one will be a leuc tank, just not sure which yet