Hey everybody

I know this is a ridiculously long post, obviously don't feel the need to answer everything... but any answers or advice would be appreciated. This is going to be my first tropical palu build. I've done ponds, aquariums, and a brackish setup with mudskippers/fiddlers/endler's livebearers/brackish plants, but never anything like this. I've also had everything from anoles to frogs to turtles to ball pythons, so I'm pretty familar with herp care. My 125G got a small chip while moving to the new townhouse two weeks ago and I don't trust it full of water over time, so I'm using it as an excuse to dive right into a tropical setup.
So far, I've decided on:
-a false bottom w/ a waterfall & a shallow, moderately sized water feature (also one or two other smaller pools).
-GS background with driftwood, orchids, and broms.
-LECA/pea gravel mix bottom layer with sphag peat moss/fir/coco/soil mix with a bit of leaf litter on top (open to any suggestions here)
-dart frogs
Now, on to the questions:
1. I know the typical answer to the multiple species of darts question. However, given the size of the tank, I am wondering if there would be any possibility of keeping one terrestrial and one arboreal species that would not crossbreed or overstress one another. A species of dart and a species of tree frog would be cool too.
Another option could be vampire crabs instead of frogs.
2. I've heard that tincs are susceptible to drowning. Does this apply to any other species? Also, I have a possible solution. I was considering a few
botia kubotai (
Burmese Border Loaches) in the water section. I've kept these guys for years, and they definitely wouldn't even consider trying to eat a frog. However, they are ridiculously playful and active- would a lot of activity in the water keep the frogs out?
I feel like that could be a pretty easy solution, especially since the loaches would probably meet and greet the frog if it wandered into the shallows (think fearless mini dolphins

)... with what I've read about most of these frogs, it seems like they wouldn't get too close to a situation like that.
Another solution involves mesh at the surface of the water feature with duckweed on top, but that complicates things if a loach ever kicks the bucket.. and I also really. hate. duckweed.
Last option would be finding frogs that won't drown, and putting yellow dwarf shrimp in the water.
3. Ventilation/Air circulation. How necessary is each and how much would be needed? I would prefer to circulate more so than ventilate for more stability in the system.
4. Types of wood- I have some grape wood but have heard that this is pretty susceptible to mold. I can get some cypress shipped up from a friend in FL, but that's a last resort cause I have a bunch of the grapewood.
5. Plants - I've heard pothos is pretty popular for many vivs... will it work in the higher humidity of a tropical viv? I also have a phalaenopsis orchid and some kyoto moss spores and am wondering if those could work. I also plan on using some riccia, java moss, and crypts from my fish tanks, i hope the transition to land isn't too difficult. Any recommendations for easy, hardy tropical plants?
6. Lighting - Right now, I'm planning on using two 36" 2x65w power compacts (each has one 10000K and one 6700K bulb) so 260 watts total. Too much?
7. Misting - the false bottom will probably contain almost 20 gallons of water and the features will have generous surface area. I'm also using glass lids (with the plastic pieces in the back so cutting can be done for wiring/tubing). How much misting will I need to do? Is it worth investing in a system or will I reach the necessary humidity by keeping ventilation to a minimum?
Starter pics will come when the false bottom and black silicone go in tomorrow
