very nicely done!
if you need acrylic tubing, i actually have a lot left over from when i used to make them myself.
if you want some, lmk and i'll give you some.
i also have a heat gun if you want to try it out with that first before investing into something else. not sure how you were trying to make it. i've researched quite a bit of bending acrylic in the cleanest way. i can discuss about it further if you'd wish.
Good gracious, I really like that scape man, all those little fishes really make the tank seem much larger than it is. I think its gonna look great with the little dwarf cory's roamin about.
Good luck man!