Honest opinion

[outtafocus]

Its actually just a plastic model solvent.
I picked it up at PM hobbycraft, they have several brands. The one I bought is called MBS.
It is basically the same stuff as weld-on, the bottle lists acrylic and styrene as well as like 10 other plastics it will work on.

That shelf is solid.

As for the aquascape, I wanted a bit more height and less of a boulder effect. I am pretty happy with the way I have it. I do have some really small pieces of LR in my sump which I will use to finish it off.
I am now able to fully magfloat all viewing surfaces, with the old pile there was 2 places I could not.

I really think I want to add a sand bed, but I am still torn. I love all the benefits of BB but I still want sand.