Congrats on rescuing this fish!
And that's what this was: a rescue. Funny how there will be thread after thread detailed so-called "rescues" which usually entails somebody going to a store, buying a fish after tut-tutting about the conditions in the tank it's in, bringing it home (often to conditions that are only marginally better...) and feeling like they are heroes. Meanwhile the guy at the store is already unboxing another shipment of the same species and throwing them into the same tank as before because they always sell well!
You actually did rescue this guy...and yet I don't think I've seen the word "rescue" anywhere in the thread. Well done, and Bravo!