@fresh_newbie,
Lol... it is time now for the game : find the ghost!
@Fish newb, (no wonder sometimes people will get you wrong for fresh_newbie and vice versa)
Frogs... like the looks especially dart frogs like green or azureus, but then with free opening and no enclosure to keep extra moisture in, I will be asking for trouble (drying or escaping frogs by the sofa).
The wall carving will not stop there, it is far from finished (work progress from bottom up). It will continue almost up to the roof opening.
Lilypads from the non high light families can grow well, but not the light loving lotus family found in open ponds.
Inhabitants...hohoho.. loads of fish? the big ones? Must resist... can not...
Even though a large number of tight schooling species will appear at best inside bigger enclosure...
*Dendroboard is one of the "poisoning" factor into giving the idea
.
I guess "Great Stuff" foam is not usable when building this big. They do have some allergy building vivs using concrete due to not so compatible nature for delicate frogs.
Back to the garden..
Here we can see the floor is excavated for waste water plumbing, huge drain pipes will be installed along that hole. Excess water from plant watering drain, pond overflow, floor drain will be channeled into one huge control box, pre filtered and goes into the waste water plumbing. Without a pre filtered control box, you will only looking for trouble from clogged pipes because debris from backwash, soil, etc will accumulate. The box's job is to retain all bigger particles and make them sink, so the plumbing will be save from clogging while the box must require some cleaning every several months.
OK... perhaps some wood or woody vines dangling from the wall would look cool (as in XXL vivariums). We will see later in the project if wood work will be used.