Okay...

So for filtration, couldn't I just use duckweed for in the water? I mean, it grows SO fast, and uses SO much ammonia.. Wouldn't it just use it all up before it would make an impact on the frogs? Plus, it would make the palu look more natural, and it would provide food for my fish. Not to mention it's about the cheapest filtration you can get!!

Now for lighting and heating. I've never had to light terrestrial plants before. Would an aquatic T5HO fixture work, say, 6500k ish? Or what about 2 6500k daylight CFL bulbs? I think they are 28 watts or something close to that. Would a 150 watt infared bulb heat the palu and water ok? The reason I am thinking about going with one of these is because they cost a lot less than a ceramic heat bulb, plus I would be able to view them at night. Do I need a UVB light for these guys?

For substrate I will be using ABG Mix with Josh's Frogs False Bottom, along with leaf litter.

Still coming up with a few designs of the land/water part. So once I get those finished I will post them to get some input.