The background is not completely dry but it is dry enough for me to turn upright. I then got some time to experiment with some hardscape designs. Here is one possibility:
The rocks in this case would be mostly buried by substrate with just the tip of the rocks on the left jutting up and part of the front of that rock as well. The substrate would then slope lower to the right and cover about half of that rock there.
Missing from this is the large piece of mopani wood I bought which will be going from near the top of the rocks on the left all the way across the tank and then curving down to the substrate. This will increase horizontal space (as does the sloping substrate) and it will create a kind of bridge the underside of which (with the help of some plantings) will be a natural hide. But I am still waiting for the darn wood to arrive heh, it was supposed to come today but alas the vagaries of the USPS have defeated me once more.
Anyway once I turned it upright and had some light shining behind it I noticed all those darn clear spots at the top. I laid it back down after taking this picture and added some more woodglue media to the top to plug up those holes. I put the fan back on and will give it another day or so of drying time before I try again.
Meanwhile I also made a hood for the top to hide equipment:
This one is made of crown molding and frankly does a much better job of not looking terrible.
And now an aside about Insitu being really really dumb. On the Insitu Website
they list the dimensions of the vivarium as " (width x height x depth): 22.25 x 24 x 17.5" (56.5 x 61 x 44.5 cm)". This is just straight up a lie.
Now it is the case that aquariums are commonly measured and their volume calculated by the exterior dimensions. Thus if you buy say a 20 gallon aquarium the measurements of the aquarium will be "24 1/4 x 12 1/2 x 16 3/4" and this is the outside of the tank. The volume of the tank is calculated not by what the tank actually holds but rather by an imaginary box that had interior dimensions the same size as the tanks exterior dimensions. This is just how the industry operates and it's been going on for quite some time.
The difference between that and Insitu is that the Insitu tanks have a splayed base. Aquariums do not. The measurements of the Insitu tank are from that splayed base, the widened base mind you is purely for aesthetics, it doesn't need to be splayed. If you measure the outside dimensions at the top of the tank the dimensions are 21.5 x 16.75
This is the actual appropriate dimensions of the Insitu. Does it change my opinion of the company or tank? No not really. But I do think it's really dumb for them to market themselves as a larger tank then it is based on an aesthetic design decision.