dont ever buy walmart fish. i got baby balas from there and i still have one after over a year... the other died a couple of days ago... and i got my pleco from there, hes so cute and fat.
most expensive anyone else ever got me, 12 kribensis male. the female was only 4.
Most i have speant in one go was £300 for a sexed pair of Hemibagrus punctatus but i have also speant £150 on a single male motoro stingray (now sadly deceased )
I don't exactly have a dearest fish (all of mine are dear to my heart ), but I have spent some money over time on a few. I have spent $10 on each of my golden severums when they were young (about 1" long). Other than that I haven't had a chance to spend a lot of money on fish !!!
Heh, well my "dearest" fish was actually quite inexpensive...in fact I think the max I've spent on a fish so far has been $8.
That being said, I do plan on purchasing some pricey fish in the future....unfortunately for me I tend to like fish that are quite expensive + have to be shipped.
This is the sort of thing that i was expecting but i love to hear what people have bought no matter how dear or cheap.
Keep 'em coming!
Thanks guys for all the replies lets have some more