Thanks for all the help, folks!
I honestly have not kept fish for years - reptiles, snakes in particular, kind of "took over" some years ago, LOL! I'm in Ontario, Canada, by the way.
I've kept quite few different species of fish in my younger days, though, focussing mainly on "oddballs". I used to keep silver arowanas, bichirs, Dats, snakeheads, etc...even bass and pike and trout from local creeks were kept by me back in the '70's...
Having a fair amount of experience keeping and breeding reptiles, I'm familiar with researching before buying, etc...for example, I wouldn't keep a normal Reticulated Python because they're just way too big to deal with for the average private keeper. I do keep Super Dwarf reticulated pythons, however - they grow to less than a third of the size.
Now, after re-acquainting myself with the aquarium hobby lately, I've decided that I might like to try something different - and I'm considering either nice Arowanas or stingrays (seeing as I can't have snakeheads anymore here in Ontario), and the stingrays really have my interest at the moment...
...However, as many people have noted, even the "small" species are actually quite large and they really do require an enclosure with a large footprint. I was recently doing some "visualization" using an 18" Zildjian Crash Cymbal from my drum kit, and an animal with an 18" diameter (plus tail) is quite large indeed and I can see how it would need plenty of room to move around without being cramped.
I am considering building a simple indoor pond to house one or two of the "smaller" rays. Is that viable option? If so, any tips...?
Maybe rays aren't for me after all...they certainly are tempting creatures, though...anyone who is able to keep them properly is privileged indeed.
Thanks again, everyone
Simon